Next version (#405)

* python 3.5.3

* v108

* new setuptools version

* removed unneeded variable

.dockerignore

@@ -0,0 +1 @@
+.git/

.gitignore

@@ -1,2 +1,3 @@
 *.pyc
 site
+.DS_Store

.travis.yml

@@ -1,6 +1,9 @@
-language: python
-python:
-  - 2.7
-script: make tests
-notifications:
-  email: false
+language: bash
+sudo: required
+services:
+  - docker
+# install: docker pull heroku/cedar:14
+script: ./tests.sh
+env:
+  - STACK=heroku-16
+  - STACK=cedar-14

CHANGELOG.md

@@ -0,0 +1,260 @@
+# Python Buildpack Changelog
+
+# 108
+
+Updated setuptools.
+
+# 107
+
+Bugfix for C dependency installation.
+
+# 106
+
+ Don't install packages that could mess up packaging.
+
+ - The Python buildpack will automatically remove `six`, `pyparsing`, `appdirs`,
+   `setuptools`, and `distribute` from a `requirements.txt` file now, as these
+   packages are provided by the Python buildpack.
+
+ # 105
+
+ Improvements to output messaging.
+
+# 104
+
+General improvements.
+
+- Fix for Heroku CI.
+- Use `pkg_resources` to check if a distribution is installed instead of
+  parsing `requirements.txt`. ([#395][395])
+
+[395]: https://github.com/heroku/heroku-buildpack-python/pull/395
+
+## 103
+
+Bug fixes and improvements.
+
+- Fix for Pipenv.
+- Fix for Heroku CI.
+- Improve handling of WEB_CONCURRENCY when using multiple buildpacks.
+- Adjust environment variables set during the build to more closely match those in the dyno environment (DYNO is now available, STACK is not).
+- Restore the build cache prior to running bin/pre_compile.
+
+## 102
+
+Buildpack code cleanup.
+
+- Improved messaging around NLTK.
+
+## 101
+
+Updated setuptools installation method.
+
+- Improved pipenv support.
+
+## 100
+
+Preliminary pipenv support.
+
+## 99
+
+Cleanup.
+
+## 98
+
+Official NLTK support and other improvements.
+
+- Support for `nltk.txt` file for declaring corpora to be downloaded.
+- Leading zeros for auto-set WEB_CONCURRENCY.
+
+## 97
+
+Improved egg-link functionality.
+
+## 96
+
+Bugfix.
+
+## 95
+
+Improved output support.
+
+## v94
+
+Improved support for PyPy.
+
+## v93
+
+Improved support for PyPy.
+
+## v92
+
+Improved cache functionality and fix egg-links regression.
+
+## v91
+
+Bugfix, rolled back to v88.
+
+## v90
+
+Bugfix.
+
+## v89
+
+Improved cache functionality and fix egg-links regression.
+
+## v88
+
+Fixed bug with editable pip installations.
+
+## v87
+
+Updated default Python 2.7.13.
+
+- Python 2.7.13 uses UCS-4 build, more compatibile with linux wheels.
+- Updated setuptools to v32.1.0.
+
+## v86
+
+Refactor and multi-buildpack compatibility.
+
+## v85
+
+Packaging fix.
+
+## v84
+
+Updated pip and setuptools.
+
+- Updated pip to v9.0.1.
+- Updated setuptools to v28.8.0.
+
+## v83
+
+Support for Heroku CI.
+
+- Cffi support for argon2
+
+## v82 (2016-08-22)
+
+Update to library detection mechnisms (pip-pop).
+
+- Updated setuptools to v25.5.0
+
+## v81 (2016-06-28)
+
+Updated default Python to 2.7.11.
+
+- Updated pip to v8.1.2.
+- Updated setuptools to v23.1.0.
+
+## v80 (2016-04-05)
+
+Improved pip-pop compatibility with latest pip releases.
+
+## v79 (2016-03-22)
+
+Compatibility improvements with heroku-apt-buildpack.
+
+## v78 (2016-03-18)
+
+Added automatic configuration of Gunicorn's `FORWARDED_ALLOW_IPS` setting.
+
+Improved detection of libffi dependency when using bcrypt via `Django[bcrypt]`.
+
+Improved GDAL support.
+
+- GDAL dependency detection now checks for pygdal and is case-insensitive.
+- The vendored GDAL library has been updated to 1.11.1.
+- GDAL bootstrapping now also installs the GEOS and Proj.4 libraries.
+
+Updated pip to 8.1.1 and setuptools to 20.3.
+
+## v77 (2016-02-10)
+
+Improvements to warnings and minor bugfix.
+
+## v76 (2016-02-08)
+
+Improved Django collectstatic support.
+
+- `$ python manage.py collectstatic` will only be run if `Django` is present in `requirements.txt`.
+- If collectstatic fails, the build fails. Full traceback is provided.
+- `$DISABLE_COLLECTSTATIC`: skip collectstatic step completely (not new).
+- `$DEBUG_COLLECTSTATIC`: echo environment variables upon collectstatic failure.
+- Updated build output style.
+- New warning for outdated Python (via pip `InsecurePlatform` warning).
+
+## v75 (2016-01-29)
+
+Updated pip and Setuptools.
+
+## v74 (2015-12-29)
+
+Added warnings for lack of Procfile.
+
+## v72 (2015-12-07)
+
+Updated default Python to 2.7.11.
+
+## v72 (2015-12-03)
+
+Added friendly warnings for common build failures.
+
+## v70 (2015-10-29)
+
+Improved compatibility with multi and node.js buildpacks.
+
+## v69 (2015-10-12)
+
+Revert to v66.
+
+## v68 (2015-10-12)
+
+Fixed .heroku/venv error with modern apps.
+
+## v67 (2015-10-12)
+
+Further improved cache compatibility with multi and node.js buildpacks.
+
+## v66 (2015-10-09)
+
+Improved compatibility with multi and node.js buildpacks.
+
+## v65 (2015-10-08)
+
+Reverted v64.
+
+## v64 (2015-10-08)
+
+Improved compatibility with multi and node.js buildpacks.
+
+## v63 (2015-10-08)
+
+Updated Pip and Setuptools.
+
+- Setuptools updated to v18.3.2
+- Pip updated to v7.1.2
+
+
+## v62 (2015-08-07)
+
+Updated Pip and Setuptools.
+
+- Setuptools updated to v18.1
+- Pip updated to v7.1.0
+
+## v61 (2015-06-30)
+
+Updated Pip and Setuptools.
+
+- Setuptools updated to v18.0.1
+- Pip updated to v7.0.3
+
+## v60 (2015-05-27)
+
+Default Python is now latest 2.7.10. Updated Pip and Distribute.
+
+- Default Python version is v2.7.10
+- Setuptools updated to v16.0
+- Pip updated to v7.0.1

Changelog.md

@@ -1,73 +0,0 @@
-## v7
-
-Features:
-
-* Full removal of Django setting injection for new apps.
-* Automatic execution of collectstatic.
-* Suppress collectstatic errors via env SILENCE_COLLECTSTATIC.
-* Increase settings.py search depth to 3.
-* Search recursively from included requirements.txt files.
-
-
-## v6 (03/23/2012)
-
-Features:
-
-* Dist packages (setup.py) support.
-* Move new virtualenvs to `/app/.heroku/venv`.
-* Heavily improved Django app detection, accounting for `Django` in `requirements.txt`.
-* Literate [documentation](http://python-buildpack.herokuapp.com).
-* Default `$PYTHONHOME`, `$PYTHONPATH`, and `$LANG` configurations.
-* Disable Django setting injection with `$DISABLE_INJECTION` + [user_env_compile](http://devcenter.heroku.com/articles/labs-user-env-compile).
-* General code refactor and improved messaging.
-* Unit tests.
-
-Bugfixes:
-
-* Django 1.4 startproject template layout support.
-* Django `manage.py` location can now be independent from `settings.py`.
-
-## v5 (02/01/2012)
-
-Bugfixes:
-
-* Git requirements 100% work.
-
-
-## v4 (01/20/2012)
-
-Features:
-
-* Updated to virtualenv v1.7 with patched pip v1.2.
-* Actually activate created virtualenv within compile process.
-* Use distribute instead of deprecated setuptools.
-* Automatically destroy and rebuild corrupt virtualenvs.
-* Refactor django and pylibmc detection.
-
-Bugfixes:
-
-* Fixed `package==dev` in requirements with patched pip embedded within virtualenv. Patch upstreamed.
-* Minor curl/rm flag fixes (thanks, contributors!)
-
-
-## v3 (12/07/2011)
-
-Bugfixes:
-
-* Better django setup.py injection.
-
-
-## v2 (11/15/2011)
-
-Features:
-
-* Support for pylibmc and libmemcached +sasl.
-
-Bugfixes:
-
-* Detect when virtualenv is checked in and alert user.
-
-
-## v1 (10/01/2011)
-
-* Conception.

Dockerfile

@@ -0,0 +1,13 @@
+FROM heroku/heroku:16-build
+
+WORKDIR /app
+ENV WORKSPACE_DIR="/app/builds" \
+    S3_BUCKET="lang-python" \
+    S3_PREFIX="heroku-16/"
+
+RUN apt-get update && apt-get install -y python-pip && rm -rf /var/lib/apt/lists/*
+
+COPY requirements.txt /app/
+RUN pip install --disable-pip-version-check --no-cache-dir -r /app/requirements.txt
+
+COPY . /app

LICENSE

@@ -1,6 +1,6 @@
 MIT License:
 
-Copyright (C) 2012 Heroku, Inc.
+Copyright (C) 2016 Heroku, Inc.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 

Makefile

@@ -1,21 +1,32 @@
-tests:
-	./bin/test
+# These targets are not files
+.PHONY: tests
 
-docs:
-	mkdir -p site
-	shocco -t 'Python Buildpack Compiler' ./bin/compile > site/index.html
-	shocco -t 'Django Buildpack Compiler' ./bin/steps/django > site/django.html
-	shocco -t 'Python Buildpack Detector' ./bin/detect > site/detect.html
-	shocco -t 'Pylibmc Buildpack Compiler' ./bin/steps/pylibmc > site/pylibmc.html
-	shocco -t 'Python Buildpack Changelog' ./Changelog.md > site/changelog.html
+test: test-cedar-14
 
-site: docs
-	cd site && git add -A && git commit -m 'update' && git push heroku master
+test-cedar-14:
+	@echo "Running tests in docker (cedar-14)..."
+	@docker run -v $(shell pwd):/buildpack:ro --rm -it -e "STACK=cedar-14" heroku/cedar:14 bash -c 'cp -r /buildpack /buildpack_test; cd /buildpack_test/; test/run;'
+	@echo ""
 
-pip:
-	git clone git@github.com:kennethreitz/pip.git --branch heroku --depth 1
-	rm -fr vendor/virtualenv-1.7/virtualenv_support/pip-1.0.2.tar.gz
-	rm -fr pip/.git
-	tar -pczf vendor/virtualenv-1.7/virtualenv_support/pip-1.0.2.tar.gz pip
-	rm -fr pip
+test-heroku-16:
+	@echo "Running tests in docker (heroku-16)..."
+	@docker run -v $(shell pwd):/buildpack:ro --rm -it -e "STACK=heroku-16" heroku/heroku:16-build bash -c 'cp -r /buildpack /buildpack_test; cd /buildpack_test/; test/run;'
+	@echo ""
 
+buildenv-heroku-16:
+	@echo "Creating build environment (heroku-16)..."
+	@echo
+	@docker build --pull -t python-buildenv-heroku-16 .
+	@echo
+	@echo "Usage..."
+	@echo
+	@echo "  $$ export AWS_ACCESS_KEY_ID=foo AWS_SECRET_ACCESS_KEY=bar  # Optional unless deploying"
+	@echo "  $$ bob build runtimes/python-2.7.13"
+	@echo "  $$ bob deploy runtimes/python-2.7.13"
+	@echo
+	@docker run -it --rm python-buildenv-heroku-16
+
+tools:
+	git clone https://github.com/kennethreitz/pip-pop.git
+	mv pip-pop/bin/* vendor/pip-pop/
+	rm -fr pip-pop

NOTICE

@@ -0,0 +1,137 @@
+This buildpack includes some vendorized packages to ease installation.
+
+jq license
+----------
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+
+shunit2 license
+---------------
+
+Copyright © 2007 Free Software Foundation, Inc. <http://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
+
+This version of the GNU Lesser General Public License incorporates the terms and conditions of version 3 of the GNU General Public License, supplemented by the additional permissions listed below.
+
+0. Additional Definitions.
+
+As used herein, “this License” refers to version 3 of the GNU Lesser General Public License, and the “GNU GPL” refers to version 3 of the GNU General Public License.
+
+“The Library” refers to a covered work governed by this License, other than an Application or a Combined Work as defined below.
+
+An “Application” is any work that makes use of an interface provided by the Library, but which is not otherwise based on the Library. Defining a subclass of a class defined by the Library is deemed a mode of using an interface provided by the Library.
+
+A “Combined Work” is a work produced by combining or linking an Application with the Library. The particular version of the Library with which the Combined Work was made is also called the “Linked Version”.
+
+The “Minimal Corresponding Source” for a Combined Work means the Corresponding Source for the Combined Work, excluding any source code for portions of the Combined Work that, considered in isolation, are based on the Application, and not on the Linked Version.
+
+The “Corresponding Application Code” for a Combined Work means the object code and/or source code for the Application, including any data and utility programs needed for reproducing the Combined Work from the Application, but excluding the System Libraries of the Combined Work.
+
+1. Exception to Section 3 of the GNU GPL.
+
+You may convey a covered work under sections 3 and 4 of this License without being bound by section 3 of the GNU GPL.
+
+2. Conveying Modified Versions.
+
+If you modify a copy of the Library, and, in your modifications, a facility refers to a function or data to be supplied by an Application that uses the facility (other than as an argument passed when the facility is invoked), then you may convey a copy of the modified version:
+
+a) under this License, provided that you make a good faith effort to ensure that, in the event an Application does not supply the function or data, the facility still operates, and performs whatever part of its purpose remains meaningful, or
+b) under the GNU GPL, with none of the additional permissions of this License applicable to that copy.
+3. Object Code Incorporating Material from Library Header Files.
+
+The object code form of an Application may incorporate material from a header file that is part of the Library. You may convey such object code under terms of your choice, provided that, if the incorporated material is not limited to numerical parameters, data structure layouts and accessors, or small macros, inline functions and templates (ten or fewer lines in length), you do both of the following:
+
+a) Give prominent notice with each copy of the object code that the Library is used in it and that the Library and its use are covered by this License.
+b) Accompany the object code with a copy of the GNU GPL and this license document.
+4. Combined Works.
+
+You may convey a Combined Work under terms of your choice that, taken together, effectively do not restrict modification of the portions of the Library contained in the Combined Work and reverse engineering for debugging such modifications, if you also do each of the following:
+
+a) Give prominent notice with each copy of the Combined Work that the Library is used in it and that the Library and its use are covered by this License.
+b) Accompany the Combined Work with a copy of the GNU GPL and this license document.
+c) For a Combined Work that displays copyright notices during execution, include the copyright notice for the Library among these notices, as well as a reference directing the user to the copies of the GNU GPL and this license document.
+d) Do one of the following:
+0) Convey the Minimal Corresponding Source under the terms of this License, and the Corresponding Application Code in a form suitable for, and under terms that permit, the user to recombine or relink the Application with a modified version of the Linked Version to produce a modified Combined Work, in the manner specified by section 6 of the GNU GPL for conveying Corresponding Source.
+1) Use a suitable shared library mechanism for linking with the Library. A suitable mechanism is one that (a) uses at run time a copy of the Library already present on the user's computer system, and (b) will operate properly with a modified version of the Library that is interface-compatible with the Linked Version.
+e) Provide Installation Information, but only if you would otherwise be required to provide such information under section 6 of the GNU GPL, and only to the extent that such information is necessary to install and execute a modified version of the Combined Work produced by recombining or relinking the Application with a modified version of the Linked Version. (If you use option 4d0, the Installation Information must accompany the Minimal Corresponding Source and Corresponding Application Code. If you use option 4d1, you must provide the Installation Information in the manner specified by section 6 of the GNU GPL for conveying Corresponding Source.)
+5. Combined Libraries.
+
+You may place library facilities that are a work based on the Library side by side in a single library together with other library facilities that are not Applications and are not covered by this License, and convey such a combined library under terms of your choice, if you do both of the following:
+
+a) Accompany the combined library with a copy of the same work based on the Library, uncombined with any other library facilities, conveyed under the terms of this License.
+b) Give prominent notice with the combined library that part of it is a work based on the Library, and explaining where to find the accompanying uncombined form of the same work.
+6. Revised Versions of the GNU Lesser General Public License.
+
+The Free Software Foundation may publish revised and/or new versions of the GNU Lesser General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Library as you received it specifies that a certain numbered version of the GNU Lesser General Public License “or any later version” applies to it, you have the option of following the terms and conditions either of that published version or of any later version published by the Free Software Foundation. If the Library as you received it does not specify a version number of the GNU Lesser General Public License, you may choose any version of the GNU Lesser General Public License ever published by the Free Software Foundation.
+
+If the Library as you received it specifies that a proxy can decide whether future versions of the GNU Lesser General Public License shall apply, that proxy's public statement of acceptance of any version is permanent authorization for you to choose that version for the Library.
+
+get-pip.py license
+------------------
+
+Copyright (c) 2008-2016 The pip developers (see AUTHORS.txt file)
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+pip-pop license
+---------------
+
+The MIT License (MIT)
+
+Copyright (c) 2014 Kenneth Reitz.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

@@ -0,0 +1,56 @@
+![python](https://cloud.githubusercontent.com/assets/51578/13712821/b68a42ce-e793-11e5-96b0-d8eb978137ba.png)
+
+# Heroku Buildpack: Python
+
+[![Build Status](https://travis-ci.org/heroku/heroku-buildpack-python.svg?branch=master)](https://travis-ci.org/heroku/heroku-buildpack-python)
+
+This is the official [Heroku buildpack](https://devcenter.heroku.com/articles/buildpacks) for Python apps, powered by [pip](https://pip.pypa.io/) and other excellent software.
+
+Recommended web frameworks include **Django** and **Flask**. The recommended webserver is **Gunicorn**. There are no restrictions around what software can be used (as long as it's pip-installable). Web processes must bind to `$PORT`, and only the HTTP protocol is permitted for incoming connections.
+
+Some Python packages with obscure C dependencies (e.g. scipy) are [not compatible](https://devcenter.heroku.com/articles/python-c-deps).
+
+See it in Action
+----------------
+
+Deploying a Python application couldn't be easier:
+
+    $ ls
+    Procfile  requirements.txt  web.py
+
+    $ heroku create --buildpack heroku/python
+
+    $ git push heroku master
+    ...
+    -----> Python app detected
+    -----> Installing python-2.7.13
+         $ pip install -r requirements.txt
+           Collecting requests (from -r requirements.txt (line 1))
+             Downloading requests-2.12.4-py2.py3-none-any.whl (576KB)
+           Installing collected packages: requests
+           Successfully installed requests-2.12.4
+
+    -----> Discovering process types
+           Procfile declares types -> (none)
+
+A `requirements.txt` file must be present at the root of your application's repository.
+
+You can also specify the latest production release of this buildpack for upcoming builds of an existing application:
+
+    $ heroku buildpacks:set heroku/python
+
+
+Specify a Python Runtime
+------------------------
+
+Specific versions of the Python runtime can be specified with a `runtime.txt` file:
+
+    $ cat runtime.txt
+    python-3.6.1
+
+Runtime options include:
+
+- `python-2.7.13`
+- `python-3.6.1`
+- `pypy-5.7.1` (unsupported, experimental)
+- `pypy3-5.5.1` (unsupported, experimental)

Readme.md

@@ -1,49 +0,0 @@
-Heroku buildpack: Python
-========================
-
-This is a [Heroku buildpack](http://devcenter.heroku.com/articles/buildpacks) for Python apps.
-It uses [virtualenv](http://www.virtualenv.org/) and [pip](http://www.pip-installer.org/).
-
-[![Build Status](https://secure.travis-ci.org/heroku/heroku-buildpack-python.png?branch=master)](http://travis-ci.org/heroku/heroku-buildpack-python)
-
-Usage
------
-
-Example usage:
-
-    $ ls
-    Procfile  requirements.txt  web.py
-
-    $ heroku create --stack cedar --buildpack git@github.com:heroku/heroku-buildpack-python.git
-
-    $ git push heroku master
-    ...
-    -----> Heroku receiving push
-    -----> Fetching custom build pack... done
-    -----> Python app detected
-    -----> Preparing virtualenv version 1.6.4
-           New python executable in ./bin/python
-           Installing setuptools............done.
-           Installing pip...............done.
-    -----> Installing dependencies using pip version 1.0.2
-           Downloading/unpacking Flask==0.7.2 (from -r requirements.txt (line 1))
-           Downloading/unpacking Werkzeug>=0.6.1 (from Flask==0.7.2->-r requirements.txt (line 1))
-           Downloading/unpacking Jinja2>=2.4 (from Flask==0.7.2->-r requirements.txt (line 1))
-           Installing collected packages: Flask, Werkzeug, Jinja2
-           Successfully installed Flask Werkzeug Jinja2
-           Cleaning up...
-
-You can also add it to upcoming builds of an existing application:
-
-    $ heroku config:add BUILDPACK_URL=git@github.com:heroku/heroku-buildpack-python.git
-
-The buildpack will detect your app as Python if it has the file `requirements.txt` in the root. It will detect your app as Python/Django if there is an additional `settings.py` in a project subdirectory.
-
-It will use virtualenv and pip to install your dependencies, vendoring a copy of the Python runtime into your slug.  The `bin/`, `include/` and `lib/` directories will be cached between builds to allow for faster pip install time.
-
-Hacking
--------
-
-To use this buildpack, fork it on Github.  Push up changes to your fork, then create a test app with `--buildpack <your-github-url>` and push to it.
-
-To change the vendored virtualenv, unpack the desired version to the `src/` folder, and update the virtualenv() function in `bin/compile` to prepend the virtualenv module directory to the path. The virtualenv release vendors its own versions of pip and setuptools.

bin/compile

@@ -1,37 +1,26 @@
 #!/usr/bin/env bash
 
-# This script serves as the
-# [**Python Buildpack**](https://github.com/heroku/heroku-buildpack-python)
-# compiler.
-#
-# A [buildpack](http://devcenter.heroku.com/articles/buildpacks) is an
-# adapter between a Python application and Heroku's runtime.
-#
-# You can intreract with the Heroku API directly with [heroku.py](https://github.com/heroku/heroku.py/).
-#
-# See also: [Release history](/changelog.html), [Detection](/detect.html).
-#
-# ## Usage
-# Compiling an app into a slug is simple:
-#
-#     $ bin/compile <build-dir> <cache-dir>
+# The Heroku Python Buildpack. This script accepts parameters for a build
+# directory, a cache directory, and a directory for app environment variables.
 
+# Warning: there are a few hacks in this script to accommodate excellent builds
+# on Heroku. No guarantee for external compatibility is made. However,
+# everything should work fine outside of the Heroku environment, if the
+# environment is setup correctly.
 
-# ## Assumptions
+# Usage:
 #
-# This buildpack makes the following assumptions:
-#
-# - The desired Python VM is available on the base system.
-# - Library dependencies are available on the base system.
-# - Django applications should not require any platform-specific configuration.
-
-# <hr />
-
-# ## Context
+#     $ bin/compile <build-dir> <cache-dir> <env-path>
 
 # Fail fast and fail hard.
 set -eo pipefail
 
+# Standard Library.
+export BPLOG_PREFIX="buildpack.python"
+export BUILDPACK_LOG_FILE=${BUILDPACK_LOG_FILE:-/dev/null}
+
+[ "$BUILDPACK_XTRACE" ] && set -o xtrace
+
 # Prepend proper path for virtualenv hackery. This will be deprecated soon.
 export PATH=:/usr/local/bin:$PATH
 
@@ -40,186 +29,212 @@ BIN_DIR=$(cd $(dirname $0); pwd) # absolute path
 ROOT_DIR=$(dirname $BIN_DIR)
 BUILD_DIR=$1
 CACHE_DIR=$2
+ENV_DIR=$3
 
-# The detected application type (`Python`|`Python/Django`).
-NAME=$($BIN_DIR/detect $BUILD_DIR)
+# Python defaults
+DEFAULT_PYTHON_VERSION="python-2.7.13"
+DEFAULT_PYTHON_STACK="cedar-14"
+PYTHON_EXE="/app/.heroku/python/bin/python"
+PIP_VERSION="9.0.1"
 
-# Where to store the Pip download cache.
-CACHED_DIRS=".heroku"
-PIP_DOWNLOAD_CACHE=${PIP_DOWNLOAD_CACHE:-$CACHE_DIR/pip_downloads}
+# Common Problem Warnings
+export WARNINGS_LOG=$(mktemp)
+export RECOMMENDED_PYTHON_VERSION=$DEFAULT_PYTHON_VERSION
 
-# Static configurations for virtualenv caches.
-LEGACY_VIRTUALENV_LOC="."
-MODERN_VIRTUALENV_LOC=".heroku/venv"
-LEGACY_VIRTUALENV_DIRS="bin include lib"
-LEGACY_VIRTUALENV_TRIGGER="lib/python2.7"
+# Setup vendored tools and pip-pop (pip-diff)
+export PATH=$PATH:$ROOT_DIR/vendor/:$ROOT_DIR/vendor/pip-pop
 
-
-# Python version. This will be used in the future to specify custom Pythons.
-PYTHON_VERSION="2.7.2"
-PYTHON_EXE="python2.7"
+# Support Anvil Build_IDs
+[ ! "$SLUG_ID" ] && SLUG_ID="defaultslug"
+[ ! "$REQUEST_ID" ] && REQUEST_ID=$SLUG_ID
+[ ! "$STACK" ] && STACK=$DEFAULT_PYTHON_STACK
 
 # Sanitizing environment variables.
-unset GIT_DIR
-unset PYTHON_HOME
-unset PYTHONPATH
-
-# We'll need to send these statics to other scripts we `source`.
-export PIP_DOWNLOAD_CACHE BUILD_DIR CACHE_DIR BIN_DIR
+unset GIT_DIR PYTHONHOME PYTHONPATH
+unset RECEIVE_DATA RUN_KEY BUILD_INFO DEPLOY LOG_TOKEN
+unset CYTOKINE_LOG_FILE GEM_PATH
 
 # Syntax sugar.
-indent() {
-  RE="s/^/       /"
-  [ $(uname) == "Darwin" ] && sed -l "$RE" || sed -u "$RE"
-}
+source $BIN_DIR/utils
 
-function virtualenv (){
-  python "$ROOT_DIR/vendor/virtualenv-1.7/virtualenv.py" "$@"
-}
+# Import collection of warnings.
+source $BIN_DIR/warnings
 
-function puts-step (){
-  echo "-----> $@"
-}
+# we need to put a bunch of symlinks in there later
+mkdir -p /app/.heroku
 
-function puts-warn (){
-  echo " !     $@"
-}
+# Set up outputs under new context
+PROFILE_PATH="$BUILD_DIR/.profile.d/python.sh"
+EXPORT_PATH="$BIN_DIR/../export"
+GUNICORN_PROFILE_PATH="$BUILD_DIR/.profile.d/python.gunicorn.sh"
+WEB_CONCURRENCY_PROFILE_PATH="$BUILD_DIR/.profile.d/WEB_CONCURRENCY.sh"
 
-# ## Build Time
-#
+# We'll need to send these statics to other scripts we `source`.
+export BUILD_DIR CACHE_DIR BIN_DIR PROFILE_PATH EXPORT_PATH
+
+# Prepend proper environment variables for Python use.
+export PATH=/app/.heroku/python/bin:/app/.heroku/vendor/bin:$PATH
+export PYTHONUNBUFFERED=1
+export LANG=en_US.UTF-8
+export C_INCLUDE_PATH=/app/.heroku/vendor/include:/app/.heroku/python/include:$C_INCLUDE_PATH
+export CPLUS_INCLUDE_PATH=/app/.heroku/vendor/include:/app/.heroku/python/include:$CPLUS_INCLUDE_PATH
+export LIBRARY_PATH=/app/.heroku/vendor/lib:/app/.heroku/python/lib:$LIBRARY_PATH
+export LD_LIBRARY_PATH=/app/.heroku/vendor/lib:/app/.heroku/python/lib:$LD_LIBRARY_PATH
+export PKG_CONFIG_PATH=/app/.heroku/vendor/lib/pkg-config:/app/.heroku/python/lib/pkg-config:$PKG_CONFIG_PATH
 
 # Switch to the repo's context.
 cd $BUILD_DIR
 
+# Warn for lack of Procfile.
+if [[ ! -f Procfile ]]; then
+  puts-warn 'Warning: Your application is missing a Procfile. This file tells Heroku how to run your application.'
+  puts-warn 'Learn more: https://devcenter.heroku.com/articles/procfile'
+fi
+
+# Prepare the cache.
+mkdir -p $CACHE_DIR
+
+# Restore old artifacts from the cache.
+mkdir -p .heroku
+
+cp -R $CACHE_DIR/.heroku/python .heroku/ &> /dev/null || true
+cp -R $CACHE_DIR/.heroku/python-stack .heroku/ &> /dev/null || true
+cp -R $CACHE_DIR/.heroku/python-version .heroku/ &> /dev/null || true
+cp -R $CACHE_DIR/.heroku/vendor .heroku/ &> /dev/null || true
+if [[ -d $CACHE_DIR/.heroku/src ]]; then
+  cp -R $CACHE_DIR/.heroku/src .heroku/ &> /dev/null || true
+fi
+
 # Experimental pre_compile hook.
 source $BIN_DIR/steps/hooks/pre_compile
 
-# ### Sanity Checks
-#
-# Just a little peace of mind.
+# Sticky runtimes.
+if [ -f $CACHE_DIR/.heroku/python-version ]; then
+  DEFAULT_PYTHON_VERSION=$(cat $CACHE_DIR/.heroku/python-version)
+fi
 
-# If no requirements given, assume `setup.py develop`.
-if [ ! -f requirements.txt ]; then
-  puts-step "No requirements.txt provided; assuming dist package."
+# Stack fallback for non-declared caches.
+if [ -f $CACHE_DIR/.heroku/python-stack ]; then
+  CACHED_PYTHON_STACK=$(cat $CACHE_DIR/.heroku/python-stack)
+else
+  CACHED_PYTHON_STACK=$STACK
+fi
+
+# Pipenv Python version support.
+source $BIN_DIR/steps/pipenv-python-version
+
+# If no runtime given, assume default version.
+if [ ! -f runtime.txt ]; then
+  echo $DEFAULT_PYTHON_VERSION > runtime.txt
+fi
+
+mkdir -p $(dirname $PROFILE_PATH)
+mkdir -p /app/.heroku/src
+
+if [[ $BUILD_DIR != '/app' ]]; then
+    # python expects to reside in /app, so set up symlinks
+    # we will not remove these later so subsequent buildpacks can still invoke it
+    ln -nsf $BUILD_DIR/.heroku/python /app/.heroku/python
+    ln -nsf $BUILD_DIR/.heroku/vendor /app/.heroku/vendor
+    # Note: .heroku/src is copied in later.
+fi
+
+# Install Python.
+let start=$(nowms)
+source $BIN_DIR/steps/python
+mtime "python.install.time" "${start}"
+
+# Pipenv support.
+source $BIN_DIR/steps/pipenv
+
+# If no requirements.txt file given, assume `setup.py develop` is intended.
+if [ ! -f requirements.txt ] && [ ! -f Pipfile ]; then
   echo "-e ." > requirements.txt
 fi
 
-# ### The Cache
-mkdir -p $CACHE_DIR
+# Fix egg-links.
+source $BIN_DIR/steps/eggpath-fix
 
-
-# Nice defaults.
-LEGACY_VIRTUALENV=false
-VIRTUALENV_LOC=$MODERN_VIRTUALENV_LOC
-
-# Support "old-style" virtualenvs.
-if [ -d $CACHE_DIR/$LEGACY_VIRTUALENV_TRIGGER ]; then
-  LEGACY_VIRTUALENV=true
-  VIRTUALENV_LOC=$LEGACY_VIRTUALENV_LOC
-  CACHED_DIRS=$LEGACY_VIRTUALENV_DIRS
-
-  # Warn for a checked-in virtualenv.
-  if [ -d "lib" ] || [ -d "bin" ]; then
-    puts-warn "You have a virtualenv checked in. You should ignore the appropriate paths in your repo. See http://devcenter.heroku.com/articles/gitignore for more info.";
-  fi
-
-  # Reject a conflicting checked-in virtualenv.
-  if [ -f "lib/python2.7" ]; then
-    puts-warn "Checked-in virtualenv conflict."
-    exit 1;
-  fi
-fi
-
-# Restore old artifacts from the cache.
-for dir in $CACHED_DIRS; do
-  cp -R $CACHE_DIR/$dir . &> /dev/null || true
-done
-
-set +e
-# Create set-aside `.heroku` folder.
-mkdir .heroku &> /dev/null
-HEROKU_DIR_STATUS=$?
-
-# This is a new app, disable injection.
-[ $HEROKU_DIR_STATUS -eq 0 ] && {
-  touch .heroku/injection_disabled
-}
-set -e
-
-
-# ### Virtualenv Setup
-#
-
-# Create the virtualenv. Rebuild if corrupt.
-# TODO: Bootstrap a bottled Python VM...
-
-set +e
-puts-step "Preparing Python interpreter ($PYTHON_VERSION)"
-puts-step "Creating Virtualenv version $(virtualenv --version)"
-
-# Try to create the virtualenv.
-OUT=$(virtualenv --python $PYTHON_EXE --distribute --never-download --prompt='(venv) ' $VIRTUALENV_LOC 2>&1)
-
-# If there's an error, purge and recreate.
-[ $? -ne 0 ] && {
-  puts-warn "Virtualenv corrupt, rebuilding."
-  for dir in $VIRTUALENV_DIRS; do
-    rm -fr $dir &> /dev/null || true
-  done
-  OUT=$(virtualenv --python $PYTHON_EXE --distribute --never-download  --prompt='(venv) ' $VIRTUALENV_LOC )
-}
-echo "$OUT" | indent
-
-set -e
+# Mercurial support.
+source $BIN_DIR/steps/mercurial
 
 # Pylibmc support.
-# See [`bin/steps/pylibmc`](pylibmc.html).
 source $BIN_DIR/steps/pylibmc
 
-# Activate the Virtualenv.
-puts-step "Activating virtualenv"
-source $VIRTUALENV_LOC/bin/activate
+# Libffi support.
+source $BIN_DIR/steps/cryptography
 
-# Install Mercurial if it appears to be required.
-if (grep -Fiq "hg+" requirements.txt) then
-  pip install --use-mirrors mercurial | indent
+# Support for Geo libraries.
+sub-env $BIN_DIR/steps/geo-libs
+
+# GDAL support.
+source $BIN_DIR/steps/gdal
+
+# Install dependencies with Pip (where the magic happens).
+let start=$(nowms)
+source $BIN_DIR/steps/pip-install
+mtime "pip.install.time" "${start}"
+
+# Uninstall removed dependencies with Pip.
+let start=$(nowms)
+source $BIN_DIR/steps/pip-uninstall
+mtime "pip.uninstall.time" "${start}"
+
+# Support for NLTK corpora.
+let start=$(nowms)
+sub-env $BIN_DIR/steps/nltk
+mtime "nltk.download.time" "${start}"
+
+# Support for pip install -e.
+# In CI, $BUILD_DIR is /app.
+if [[ ! "$BUILD_DIR" == "/app" ]]; then
+  rm -fr $BUILD_DIR/.heroku/src
+  deep-cp /app/.heroku/src $BUILD_DIR/.heroku/src
 fi
 
-# Install dependencies with Pip.
-puts-step "Installing dependencies using pip version $(pip --version | awk '{print $2}')"
-pip install --use-mirrors -r requirements.txt --src ./.heroku/src | indent
 
-# Do additional application hackery if applications appears to be a Django app.
-# Optionally, disable all Django-specific changes with `DISABLE_INJECTION` env.
-#
-# See [`bin/steps/django`](django.html).
+# Django collectstatic support.
+let start=$(nowms)
+sub-env $BIN_DIR/steps/collectstatic
+mtime "collectstatic.time" "${start}"
 
-if [ "$NAME" = "Python/Django" ]; then
-  source $BIN_DIR/steps/django/init
-fi
+# Create .profile script for application runtime environment variables.
+set-env PATH '$HOME/.heroku/python/bin:$PATH'
+set-env PYTHONUNBUFFERED true
+set-env PYTHONHOME /app/.heroku/python
+set-env LIBRARY_PATH '/app/.heroku/vendor/lib:/app/.heroku/python/lib:$LIBRARY_PATH'
+set-env LD_LIBRARY_PATH '/app/.heroku/vendor/lib:/app/.heroku/python/lib:$LD_LIBRARY_PATH'
+set-default-env LANG en_US.UTF-8
+set-default-env PYTHONHASHSEED random
+set-default-env PYTHONPATH /app/
 
-# Make Virtualenv's paths relative for portability.
-set +e
-OUT=$(virtualenv --python $PYTHON_EXE  --relocatable $VIRTUALENV_LOC)
-[ $? -ne 0 ] && {
-  puts-warn "Error making virtualenv relocatable"
-  echo "$OUT" | indent
-  exit 1
-}
-set -e
+# Install sane-default script for $WEB_CONCURRENCY and $FORWARDED_ALLOW_IPS.
+cp $ROOT_DIR/vendor/WEB_CONCURRENCY.sh $WEB_CONCURRENCY_PROFILE_PATH
+cp $ROOT_DIR/vendor/python.gunicorn.sh $GUNICORN_PROFILE_PATH
 
-# ### Finalize
-#
-
-# Store new artifacts in cache.
-for dir in $CACHED_DIRS; do
-  rm -rf $CACHE_DIR/$dir
-  cp -R $dir $CACHE_DIR/
-done
-
-# ### Fin.
 
 # Experimental post_compile hook.
 source $BIN_DIR/steps/hooks/post_compile
 
-# <a href="http://github.com/heroku/heroku-buildpack-python"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://d3nwyuy0nl342s.cloudfront.net/img/7afbc8b248c68eb468279e8c17986ad46549fb71/687474703a2f2f73332e616d617a6f6e6177732e636f6d2f6769746875622f726962626f6e732f666f726b6d655f72696768745f6461726b626c75655f3132313632312e706e67" alt="Fork me on GitHub"></a>
+# Fix egg-links, again.
+source $BIN_DIR/steps/eggpath-fix2
+
+# Store new artifacts in cache.
+
+rm -rf $CACHE_DIR/.heroku/python
+rm -rf $CACHE_DIR/.heroku/python-version
+rm -rf $CACHE_DIR/.heroku/python-stack
+rm -rf $CACHE_DIR/.heroku/vendor
+rm -rf $CACHE_DIR/.heroku/src
+
+mkdir -p $CACHE_DIR/.heroku
+cp -R .heroku/python $CACHE_DIR/.heroku/
+cp -R .heroku/python-version $CACHE_DIR/.heroku/
+cp -R .heroku/python-stack $CACHE_DIR/.heroku/ &> /dev/null || true
+cp -R .heroku/vendor $CACHE_DIR/.heroku/ &> /dev/null || true
+if [[ -d .heroku/src ]]; then
+  cp -R .heroku/src $CACHE_DIR/.heroku/ &> /dev/null || true
+fi
+
+# Measure the size of the Python installation.
+mmeasure 'python.size' "$(measure-size)"

bin/detect

@@ -4,7 +4,7 @@
 # [**Python Buildpack**](https://github.com/heroku/heroku-buildpack-python)
 # detector.
 #
-# A [buildpack](http://devcenter.heroku.com/articles/buildpacks) is an
+# A [buildpack](https://devcenter.heroku.com/articles/buildpacks) is an
 # adapter between a Python application and Heroku's runtime.
 
 # ## Usage
@@ -15,50 +15,8 @@
 BUILD_DIR=$1
 
 # Exit early if app is clearly not Python.
-if [ ! -f $BUILD_DIR/requirements.txt ] && [ ! -f $BUILD_DIR/setup.py ]; then
+if [ ! -f $BUILD_DIR/requirements.txt ] && [ ! -f $BUILD_DIR/setup.py ] && [ ! -f $BUILD_DIR/Pipfile ]; then
   exit 1
 fi
 
-# If only `setup.py`, assume that the app is not Django.
-if [ ! -f $BUILD_DIR/requirements.txt ]; then
-  echo Python
-  exit 0
-fi
-
-# `Python/Django` if `**/settings.py` is present and `django` exists in
-# `requirements.txt`.
-#
-# Otherwise, `Python`.
-
-array=""
-list_requirements() {
-IFS_BAK=$IFS
-IFS="
-"
-    requirement_file=$1
-    reqs=$(cat $requirement_file)
-    for req in $reqs; do
-        if [[ $req == -r* ]]; then
-            new_req=$(echo $req | cut -d" " -f2)
-            if [[ $new_req == $1 ]]; then
-                continue
-            fi
-            directory=$(dirname $requirement_file)
-            if [[ ! $array == *$directory/$new_req* ]]; then
-                list_requirements "$directory/$new_req"
-            fi
-            array="$array $directory/$new_req"
-        else
-            echo $req;
-        fi
-
-    done
-IFS=$IFS_BAK
-IFS_BAK=
-}
-
-
-SETTINGS_FILE=$(find $BUILD_DIR/. -maxdepth 2 -type f -name 'settings.py' | head -1)
-
-
-[ -n "$SETTINGS_FILE" ] && ( list_requirements $BUILD_DIR/requirements.txt | grep -Fiq "django" ) && echo Python/Django || echo Python
+echo Python

bin/release

@@ -3,33 +3,21 @@
 
 BIN_DIR=$(cd $(dirname $0); pwd) # absolute path
 BUILD_DIR=$1
-NAME=$($BIN_DIR/detect $BUILD_DIR) || exit 1
+
+MANAGE_FILE=$(cd $BUILD_DIR && find . -maxdepth 3 -type f -name 'manage.py' | head -1)
+MANAGE_FILE=${MANAGE_FILE:2}
 
 cat <<EOF
 ---
 config_vars:
-  PATH: /app/.heroku/venv/bin:/bin:/usr/local/bin:/usr/bin
-  PYTHONUNBUFFERED: true
-  LIBRARY_PATH: /app/.heroku/vendor/lib
-  LD_LIBRARY_PATH: /app/.heroku/vendor/lib
-  LANG: en_US.UTF-8
-  PYTHONHASHSEED: random
-  PYTHONHOME: /app/.heroku/venv/
-  PYTHONPATH: /app/
+
 EOF
 
 
-[ "$NAME" = "Python/Django" ] || exit 0
-
-MANAGE_FILE=$(cd $BUILD_DIR && find . -maxdepth 3 -type f -name 'manage.py' | head -1)
-MANAGE_FILE=${MANAGE_FILE:2}
-PROJECT=$(dirname $MANAGE_FILE)
-
+if [[ $MANAGE_FILE ]]; then
 cat <<EOF
 
 addons:
-  shared-database:5mb
-
-default_process_types:
-  web:      python $PROJECT/manage.py runserver 0.0.0.0:\$PORT --noreload
+  - heroku-postgresql
 EOF
+fi

bin/steps/collectstatic

@@ -0,0 +1,64 @@
+#!/usr/bin/env bash
+
+# Django Collectstatic runner. If you have Django installed, collectstatic will
+# automatically be executed as part of the build process. If collectstatic
+# fails, your build fails.
+
+# This functionality will only activate if Django is in requirements.txt.
+
+# Runtime arguments:
+#   - $DISABLE_COLLECTSTATIC: disables this functionality.
+#   - $DEBUG_COLLECTSTATIC: upon failure, print out environment variables.
+
+source $BIN_DIR/utils
+
+# Location of 'manage.py', if it exists.
+MANAGE_FILE=$(find . -maxdepth 3 -type f -name 'manage.py' -printf '%d\t%P\n' | sort -nk1 | cut -f2 | head -1)
+MANAGE_FILE=${MANAGE_FILE:-fakepath}
+
+# Legacy file-based support for $DISABLE_COLLECTSTATIC
+[ -f .heroku/collectstatic_disabled ] && DISABLE_COLLECTSTATIC=1
+
+# Ensure that Django is explicitly specified in requirements.txt
+sp-grep django && DJANGO_INSTALLED=1
+
+
+if [ ! "$DISABLE_COLLECTSTATIC" ] && [ -f "$MANAGE_FILE" ] && [ "$DJANGO_INSTALLED" ]; then
+    set +e
+
+    puts-step "$ python $MANAGE_FILE collectstatic --noinput"
+
+    # Run collectstatic, cleanup some of the noisy output.
+    python $MANAGE_FILE collectstatic --noinput --traceback 2>&1 | sed '/^Post-processed/d;/^Copying/d;/^$/d' | indent
+    COLLECTSTATIC_STATUS="${PIPESTATUS[0]}"
+
+    set -e
+
+    # Display a warning if collectstatic failed.
+    [ $COLLECTSTATIC_STATUS -ne 0 ] && {
+
+        echo
+        echo " !     Error while running '$ python $MANAGE_FILE collectstatic --noinput'."
+        echo "       See traceback above for details."
+        echo
+        echo "       You may need to update application code to resolve this error."
+        echo "       Or, you can disable collectstatic for this application:"
+        echo
+        echo "          $ heroku config:set DISABLE_COLLECTSTATIC=1"
+        echo
+        echo "       https://devcenter.heroku.com/articles/django-assets"
+
+        # Additionally, dump out the environment, if debug mode is on.
+        if [ "$DEBUG_COLLECTSTATIC" ]; then
+            echo
+            echo "****** Collectstatic environment variables:"
+            echo
+            env | indent
+        fi
+
+        # Abort the build.
+        exit 1
+    }
+
+    echo
+fi

bin/steps/cryptography

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+
+# This script serves as the Cryptography build step of the
+# [**Python Buildpack**](https://github.com/heroku/heroku-buildpack-python)
+# compiler.
+#
+# A [buildpack](https://devcenter.heroku.com/articles/buildpacks) is an
+# adapter between a Python application and Heroku's runtime.
+#
+# This script is invoked by [`bin/compile`](/).
+
+# The location of the pre-compiled libffi binary.
+VENDORED_LIBFFI="https://lang-python.s3.amazonaws.com/$STACK/libraries/vendor/libffi.tar.gz"
+
+PKG_CONFIG_PATH="/app/.heroku/vendor/lib/pkgconfig:$PKG_CONFIG_PATH"
+
+# Syntax sugar.
+source $BIN_DIR/utils
+
+# If a package using cffi exists within requirements, use vendored libffi.
+if (pip-grep -s requirements.txt argon2-cffi bcrypt cffi cryptography django[argon2] Django[argon2] django[bcrypt] Django[bcrypt] PyNaCl pyOpenSSL PyOpenSSL requests[security] misaka &> /dev/null) then
+
+  if [ ! -d ".heroku/vendor/lib/libffi-3.1" ]; then
+    echo "-----> Noticed cffi. Bootstrapping libffi."
+    mkdir -p .heroku/vendor
+    # Download and extract libffi into target vendor directory.
+    curl $VENDORED_LIBFFI -s | tar zxv -C .heroku/vendor &> /dev/null
+  fi
+
+  export LIBFFI=$(pwd)/vendor
+fi

bin/steps/django/collectstatic

@@ -1,35 +0,0 @@
-#!/usr/bin/env bash
-
-set +e
-
-# Syntax sugar.
-indent() {
-  RE="s/^/       /"
-  [ $(uname) == "Darwin" ] && sed -l "$RE" || sed -u "$RE"
-}
-
-
-# Check if collectstatic is configured.
-python $MANAGE_FILE collectstatic --help &> /dev/null && RUN_COLLECTSTATIC=true
-
-# Don't raise errors if SILENCE_COLLECTSTATIC is set.
-if [ ! "$SILENCE_COLLECTSTATIC" ]; then
-    set -e
-fi
-
-echo "-----> Collecting static files"
-
-# Compile assets if collectstatic appears to be kosher.
-if [ "$RUN_COLLECTSTATIC" ]; then
-    python $MANAGE_FILE collectstatic --noinput | indent
-
-    [ $? -ne 0 ] && {
-        echo " !     Error running manage.py collectstatic. More info:"
-        echo "       http://devcenter.heroku.com/articles/django-assets"
-    }
-else
-    echo " !     Django collecstatic is not configured. Learn more:"
-    echo "       http://devcenter.heroku.com/articles/django-assets"
-fi
-
-echo

bin/steps/django/init

@@ -1,19 +0,0 @@
-#!/usr/bin/env bash
-
-SETTINGS_FILE=$(find . -maxdepth 3 -type f -name 'settings.py' | head -1)
-PROJECT=$(dirname $SETTINGS_FILE)
-MANAGE_FILE=$(find . -maxdepth 3 -type f -name 'manage.py' | head -1)
-MANAGE_FILE=${MANAGE_FILE:2}
-
-# Disable injection for new applications.
-if [ -f .heroku/injection_disabled ]; then
-  DISABLE_INJECTION=1
-fi
-
-export SETTINGS_FILE MANAGE_FILE PROJECT DISABLE_INJECTION
-
-if [ ! "$DISABLE_INJECTION" ]; then
-    source $BIN_DIR/steps/django/injection
-fi
-
-source $BIN_DIR/steps/django/collectstatic

bin/steps/django/injection

@@ -1,37 +0,0 @@
-#!/usr/bin/env bash
-
-# This script serves as the Django injection build step of the
-# [**Python Buildpack**](https://github.com/heroku/heroku-buildpack-python)
-# compiler.
-#
-# A [buildpack](http://devcenter.heroku.com/articles/buildpacks) is an
-# adapter between a Python application and Heroku's runtime.
-#
-# This script is invoked by [`bin/compile`](/).
-
-# ## Sanity Checks
-#
-
-# Syntax sugar.
-indent() {
-  RE="s/^/       /"
-  [ $(uname) == "Darwin" ] && sed -l "$RE" || sed -u "$RE"
-}
-
-echo "-----> Installing dj-database-url..."
-pip install --use-mirrors dj-database-url | indent
-
-echo "-----> Injecting Django settings..."
-
-SETTINGS_FILE=$(find . -maxdepth 2 -type f -name 'settings.py' | head -1)
-PROJECT=$(dirname $SETTINGS_FILE)
-
-echo "Injecting code into $SETTINGS_FILE to read from DATABASE_URL" | indent
-
-cat >>$SETTINGS_FILE <<EOF
-
-import dj_database_url
-
-DATABASES['default'] = dj_database_url.config()
-EOF
-

bin/steps/eggpath-fix

@@ -0,0 +1,11 @@
+set +e
+# delete any existing egg links, to uninstall exisisting installations.
+find .heroku/python/lib/python*/site-packages/ -name "*.egg-link" -delete 2> /dev/null
+find .heroku/python/lib/python*/site-packages/ -name "*.pth" -print0 2> /dev/null | xargs -r -0 -n 1 sed -i -e "s#/app/#/$(pwd)/#" &> /dev/null
+set -e
+
+set +e
+# Support for the above, for PyPy.
+find .heroku/python/lib-python/*/site-packages/ -name "*.egg-link" -print0 2> /dev/null | xargs -r -0 -n 1 sed -i -e "s#/app/#$(pwd)/#" &> /dev/null
+find .heroku/python/lib-python/*/site-packages/ -name "*.pth" -print0 2> /dev/null | xargs -r -0 -n 1 sed -i -e "s#/app/#/$(pwd)/#" &> /dev/null
+set -e

bin/steps/eggpath-fix2

@@ -0,0 +1,9 @@
+set +e
+# rewrite build dir in egg links to /app so things are found at runtime
+find .heroku/python/lib/python*/site-packages/ -name "*.pth" -print0 2> /dev/null | xargs -r -0 -n 1 sed -i -e "s#$(pwd)#/app#" &> /dev/null
+set -e
+
+set +e
+# Support for PyPy
+find .heroku/python/lib-python/*/site-packages/  -name "*.pth" -print0 2> /dev/null | xargs -r -0 -n 1 sed -i -e "s#$(pwd)#/app#" &> /dev/null
+set -e

bin/steps/gdal

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+
+# This script serves as the GDAL build step of the
+# [**Python Buildpack**](https://github.com/heroku/heroku-buildpack-python)
+# compiler.
+#
+# A [buildpack](https://devcenter.heroku.com/articles/buildpacks) is an
+# adapter between a Python application and Heroku's runtime.
+#
+# This script is invoked by [`bin/compile`](/).
+
+# The location of the pre-compiled cryptography binary.
+VENDORED_GDAL="https://lang-python.s3.amazonaws.com/$STACK/libraries/vendor/gdal.tar.gz"
+
+PKG_CONFIG_PATH="/app/.heroku/vendor/lib/pkgconfig:$PKG_CONFIG_PATH"
+
+# Syntax sugar.
+source $BIN_DIR/utils
+
+# If GDAL exists within requirements, use vendored gdal.
+if (pip-grep -s requirements.txt GDAL gdal pygdal &> /dev/null) then
+
+  if [ ! -f ".heroku/vendor/bin/gdalserver" ]; then
+    echo "-----> Noticed GDAL. Bootstrapping gdal."
+    mkdir -p .heroku/vendor
+    # Download and extract cryptography into target vendor directory.
+    curl $VENDORED_GDAL -s | tar zxv -C .heroku/vendor &> /dev/null
+  fi
+
+  export GDAL=$(pwd)/vendor
+fi
+

bin/steps/geo-libs

@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+
+# This script serves as the GDAL build step of the
+# [**Python Buildpack**](https://github.com/heroku/heroku-buildpack-python)
+# compiler.
+#
+# A [buildpack](https://devcenter.heroku.com/articles/buildpacks) is an
+# adapter between a Python application and Heroku's runtime.
+#
+# This script is invoked by [`bin/compile`](/).
+
+# The location of the pre-compiled cryptography binary.
+VENDORED_GDAL="https://lang-python.s3.amazonaws.com/$STACK/libraries/vendor/gdal.tar.gz"
+VENDORED_GEOS="https://lang-python.s3.amazonaws.com/$STACK/libraries/vendor/geos.tar.gz"
+VENDORED_PROJ="https://lang-python.s3.amazonaws.com/$STACK/libraries/vendor/proj.tar.gz"
+
+PKG_CONFIG_PATH="/app/.heroku/vendor/lib/pkgconfig:$PKG_CONFIG_PATH"
+
+# Syntax sugar.
+source $BIN_DIR/utils
+
+# If GDAL exists within requirements, use vendored gdal.
+if [[ "$BUILD_WITH_GEO_LIBRARIES" ]]; then
+
+  if [ ! -f ".heroku/vendor/bin/proj" ]; then
+    echo "-----> Bootstrapping gdal, geos, proj."
+    mkdir -p .heroku/vendor
+    # Download and extract cryptography into target vendor directory.
+    curl $VENDORED_GDAL -s | tar zxv -C .heroku/vendor &> /dev/null
+    curl $VENDORED_GEOS -s | tar zxv -C .heroku/vendor &> /dev/null
+    curl $VENDORED_PROJ -s | tar zxv -C .heroku/vendor &> /dev/null
+  fi
+
+  export GDAL=$(pwd)/vendor
+fi
+

bin/steps/hooks/post_compile

@@ -3,5 +3,5 @@
 if [ -f bin/post_compile ]; then
     echo "-----> Running post-compile hook"
     chmod +x bin/post_compile
-    bin/post_compile
+    sub-env bin/post_compile
 fi

bin/steps/hooks/pre_compile

@@ -3,5 +3,5 @@
 if [ -f bin/pre_compile ]; then
     echo "-----> Running pre-compile hook"
     chmod +x bin/pre_compile
-    bin/pre_compile
+    sub-env bin/pre_compile
 fi

bin/steps/mercurial

@@ -0,0 +1,4 @@
+# Install Mercurial if it appears to be required.
+if (grep -Fiq "hg+" requirements.txt) then
+    /app/.heroku/python/bin/pip install  mercurial | cleanup | indent
+fi

bin/steps/nltk

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+# This script serves as the NLTK build step of the
+# [**Python Buildpack**](https://github.com/heroku/heroku-buildpack-python)
+# compiler.
+#
+# A [buildpack](https://devcenter.heroku.com/articles/buildpacks) is an
+# adapter between a Python application and Heroku's runtime.
+#
+# This script is invoked by [`bin/compile`](/).
+
+# Syntax sugar.
+source $BIN_DIR/utils
+
+# Check that nltk was installed by pip, otherwise obviously not needed
+python -m nltk.downloader -h >/dev/null 2>&1
+if [ $? -eq 0 ]; then
+    puts-step "Downloading NLTK corpora..."
+    nltk_packages_definition="$BUILD_DIR/nltk.txt"
+    if [ -f "$nltk_packages_definition" ]; then
+        nltk_packages=$(tr "\n" " " < "$nltk_packages_definition")
+        puts-step "Downloading NLTK packages: $nltk_packages"
+        python -m nltk.downloader -d $BUILD_DIR/.heroku/python/nltk_data $nltk_packages  | indent
+        set-env NLTK_DATA "/app/.heroku/python/nltk_data"
+    else
+        puts-warn "'nltk.txt' not found, not downloading any corpora"
+        puts-warn "Learn more: https://devcenter.heroku.com/articles/python-nltk"
+    fi
+fi
+

bin/steps/pip-install

@@ -0,0 +1,23 @@
+if [ ! "$SKIP_PIP_INSTALL" ]; then
+
+    # Install dependencies with Pip.
+    puts-step "Installing requirements with pip"
+
+    set +e
+    /app/.heroku/python/bin/pip install -r $BUILD_DIR/requirements.txt --exists-action=w --src=/app/.heroku/src --disable-pip-version-check --no-cache-dir 2>&1 | tee $WARNINGS_LOG | cleanup | indent
+    PIP_STATUS="${PIPESTATUS[0]}"
+    set -e
+
+    show-warnings
+
+    if [[ ! $PIP_STATUS -eq 0 ]]; then
+        exit 1
+    fi
+
+
+    # Smart Requirements handling
+    cp requirements.txt .heroku/python/requirements-declared.txt
+    /app/.heroku/python/bin/pip freeze --disable-pip-version-check > .heroku/python/requirements-installed.txt
+
+    echo
+fi

bin/steps/pip-uninstall

@@ -0,0 +1,18 @@
+set +e
+# Install dependencies with Pip.
+
+if [[ -f .heroku/python/requirements-declared.txt ]]; then
+
+  cp .heroku/python/requirements-declared.txt requirements-declared.txt
+
+  pip-diff --stale requirements-declared.txt requirements.txt --exclude setuptools pip wheel > .heroku/python/requirements-stale.txt
+
+  rm -fr requirements-declared.txt
+
+  if [[ -s .heroku/python/requirements-stale.txt ]]; then
+    puts-step "Uninstalling stale dependencies"
+    /app/.heroku/python/bin/pip uninstall -r .heroku/python/requirements-stale.txt -y --exists-action=w | cleanup | indent
+  fi
+fi
+
+set -e

bin/steps/pipenv

@@ -0,0 +1,19 @@
+# Pipenv support (Generate requriements.txt with pipenv).
+if [[ -f Pipfile ]]; then
+    if [[ ! -f requirements.txt ]]; then
+        puts-step "Installing requirements with latest pipenv..."
+
+        # Install pipenv.
+        /app/.heroku/python/bin/pip install pipenv --upgrade &> /dev/null
+
+        # Install the dependencies.
+        /app/.heroku/python/bin/pipenv install --system 2>&1 | indent
+
+        # Skip pip install, later.
+        export SKIP_PIP_INSTALL=1
+
+        # Pip freeze, for compatibility.
+        /app/.heroku/python/bin/pip freeze > requirements.txt
+
+    fi
+fi

bin/steps/pipenv-python-version

@@ -0,0 +1,23 @@
+# Detect Python-version with Pipenv.
+
+if [[ -f $BUILD_DIR/Pipfile.lock ]]; then
+
+    if [[ ! -f $BUILD_DIR/runtime.txt ]]; then
+        if [[ ! -f $BUILD_DIR/Pipfile.lock ]]; then
+            puts-warn "No 'pipfile.lock' found! We recommend you commit this into your repository."
+        fi
+        if [[ -f $BUILD_DIR/Pipfile.lock ]]; then
+            set +e
+            PYTHON=$(cat $BUILD_DIR/Pipfile.lock | jq '._meta.requires.python_version' -r)
+            set -e
+
+            if [ "$PYTHON" = 2.7 ]; then
+                echo "python-2.7.13" > $BUILD_DIR/runtime.txt
+            fi
+            if [ "$PYTHON" = 3.6 ]; then
+                echo "python-3.6.0" > $BUILD_DIR/runtime.txt
+            fi
+        fi
+    fi
+fi
+

bin/steps/pylibmc

@@ -1,35 +1,30 @@
 #!/usr/bin/env bash
 
 # This script serves as the Pylibmc build step of the
-# [**Python Buildpack**](https://github.com/heroku/heroku-buildpack-python) 
-# compiler. 
-# 
-# A [buildpack](http://devcenter.heroku.com/articles/buildpacks) is an 
+# [**Python Buildpack**](https://github.com/heroku/heroku-buildpack-python)
+# compiler.
+#
+# A [buildpack](https://devcenter.heroku.com/articles/buildpacks) is an
 # adapter between a Python application and Heroku's runtime.
 #
 # This script is invoked by [`bin/compile`](/).
 
 # The location of the pre-compiled libmemcached binary.
-VENDORED_MEMCACHED="http://cl.ly/0a191R3K160t1w1P0N25/vendor-libmemcached.tar.gz"
+VENDORED_MEMCACHED="https://lang-python.s3.amazonaws.com/$STACK/libraries/vendor/libmemcache.tar.gz"
+
+# Syntax sugar.
+source $BIN_DIR/utils
+
 
 # If pylibmc exists within requirements, use vendored libmemcached.
-if (grep -Fiq "pylibmc" requirements.txt) then
-  echo "-----> Noticed pylibmc. Bootstrapping libmemcached."
-  cd .heroku
+if (pip-grep -s requirements.txt pylibmc &> /dev/null) then
 
-  if [ -d "vendor/lib/sasl2" ]; then
-    export LIBMEMCACHED=$(pwd)/vendor
-  else
+  if [ ! -d ".heroku/vendor/lib/sasl2" ]; then
+    echo "-----> Noticed pylibmc. Bootstrapping libmemcached."
+    mkdir -p .heroku/vendor
     # Download and extract libmemcached into target vendor directory.
-    curl -s -L -o tmp-libmemcached.tar.gz $VENDORED_MEMCACHED
-    tar -zxvf tmp-libmemcached.tar.gz > /dev/null
-    rm tmp-libmemcached.tar.gz
-    export LIBMEMCACHED=$(pwd)/vendor
+    curl $VENDORED_MEMCACHED -s | tar zxv -C .heroku/vendor &> /dev/null
   fi
 
   export LIBMEMCACHED=$(pwd)/vendor
-  cd ..
 fi
-
-
-

bin/steps/python

@@ -0,0 +1,62 @@
+set +e
+runtime-fixer runtime.txt
+PYTHON_VERSION=$(cat runtime.txt)
+
+# Install Python.
+if [ -f .heroku/python-version ]; then
+  if [ ! $(cat .heroku/python-version) = $PYTHON_VERSION ]; then
+      puts-step "Found $(cat .heroku/python-version), removing"
+      rm -fr .heroku/python
+  else
+    SKIP_INSTALL=1
+  fi
+fi
+
+if [ ! $STACK = $CACHED_PYTHON_STACK ]; then
+    rm -fr .heroku/python .heroku/python-stack .heroku/vendor
+    unset SKIP_INSTALL
+fi
+
+
+if [ ! "$SKIP_INSTALL" ]; then
+    puts-step "Installing $PYTHON_VERSION"
+
+    # Prepare destination directory.
+    mkdir -p .heroku/python
+
+    curl https://lang-python.s3.amazonaws.com/$STACK/runtimes/$PYTHON_VERSION.tar.gz -s | tar zxv -C .heroku/python &> /dev/null
+    mcount "version.python.$PYTHON_VERSION"
+
+    if [[ $? != 0 ]] ; then
+      puts-warn "Requested runtime ($PYTHON_VERSION) is not available for this stack ($STACK)."
+      puts-warn "Aborting.  More info: https://devcenter.heroku.com/articles/python-support"
+      exit 1
+    fi
+
+  # Record for future reference.
+  echo $PYTHON_VERSION > .heroku/python-version
+  echo $STACK > .heroku/python-stack
+  FRESH_PYTHON=true
+
+  hash -r
+fi
+
+# If Pip isn't up to date:
+if [ "$FRESH_PYTHON" ] || [[ ! $(pip --version) == *$PIP_VERSION* ]]; then
+  WORKING_DIR=$(pwd)
+
+  TMPTARDIR=$(mktemp -d)
+  trap "rm -rf $TMPTARDIR" RETURN
+
+  puts-step "Installing pip"
+
+  # Remove old installations.
+  rm -fr /app/.heroku/python/lib/python2.7/site-packages/pip-*
+  rm -fr /app/.heroku/python/lib/python2.7/site-packages/setuptools-*
+
+  /app/.heroku/python/bin/python $ROOT_DIR/vendor/get-pip.py &> /dev/null
+
+fi
+
+set -e
+hash -r

bin/test

@@ -1,77 +0,0 @@
-#!/usr/bin/env bash
-
-#
-# Create a Heroku app with the following buildpack:
-# https://github.com/ddollar/buildpack-tet
-#
-# Push this Python buildpack to that Heroku app to
-# run the tests.
-#
-
-testDetectWithReqs() {
-  detect "simple-requirements"
-  assertCapturedEquals "Python"
-  assertCapturedSuccess
-}
-
-testDetectWithEmptyReqs() {
-  detect "empty-requirements"
-  assertCapturedEquals "Python"
-  assertCapturedSuccess
-}
-
-testDetectDjango14() {
-  detect "django-1.4-skeleton"
-  assertCapturedEquals "Python/Django"
-  assertCapturedSuccess
-}
-
-testDetectDjango13() {
-  detect "django-1.3-skeleton"
-  assertCapturedEquals "Python/Django"
-  assertCapturedSuccess
-}
-
-testDetectNotDjangoWithSettings() {
-  detect "not-django"
-  assertCapturedEquals "Python"
-  assertCapturedSuccess
-}
-
-testDetectWithSetupPy() {
-  detect "distutils"
-  assertCapturedEquals "Python"
-  assertCapturedSuccess
-}
-
-testDetectWithSetupRequires() {
-  detect "no-requirements"
-  assertCapturedEquals "Python"
-  assertCapturedSuccess
-}
-
-testDetectNotPython() {
-  detect "not-python"
-  assertNotCaptured "Python"
-  assertEquals "1" "${RETURN}"
-}
-
-
-## utils ########################################
-
-pushd $(dirname 0) >/dev/null
-BASE=$(pwd)
-popd >/dev/null
-
-source ${BASE}/vendor/test-utils
-
-detect() {
-  capture ${BASE}/bin/detect ${BASE}/test/$1
-}
-
-compile() {
-  capture ${BASE}/bin/compile ${BASE}/test/$1
-}
-
-source ${BASE}/vendor/shunit2
-

bin/test-compile

@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+
+# Syntax sugar.
+BIN_DIR=$(cd $(dirname $0); pwd) # absolute path
+source $BIN_DIR/utils
+
+DISABLE_COLLECTSTATIC=1 "$(dirname ${0:-})/compile" "$1" "$2" "$3"
+
+if [[ -f "$1/requirements-test.txt" ]]; then
+    /app/.heroku/python/bin/pip install -r "$1/requirements-test.txt" --exists-action=w --src=./.heroku/src --disable-pip-version-check --no-cache-dir 2>&1 | cleanup | indent
+fi

bin/utils

@@ -0,0 +1,81 @@
+#!/usr/bin/env bash
+shopt -s extglob
+
+# The standard library.
+if [[ ! -f  /tmp/stdlib.sh ]]; then
+  curl --retry 3 -s https://lang-common.s3.amazonaws.com/buildpack-stdlib/v2/stdlib.sh > /tmp/stdlib.sh
+fi
+source /tmp/stdlib.sh
+
+if [ $(uname) == Darwin ]; then
+    sed() { command sed -l "$@"; }
+else
+    sed() { command sed -u "$@"; }
+fi
+
+# Syntax sugar.
+indent() {
+  sed "s/^/       /"
+}
+
+
+# Clean up pip output
+cleanup() {
+  sed -e 's/\.\.\.\+/.../g' | sed -e '/already satisfied/Id' | sed -e '/No files were found to uninstall/Id' | sed -e '/Overwriting/Id' | sed -e '/python executable/Id' | sed -e '/no previously-included files/Id'
+}
+
+# Buildpack Steps.
+puts-step() {
+  echo "-----> $@"
+}
+
+# Buildpack Warnings.
+puts-warn() {
+  echo " !     $@"
+}
+
+# Does some serious copying.
+deep-cp() {
+  declare source="$1" target="$2"
+
+  mkdir -p "$target"
+
+  # cp doesn't like being called without source params,
+  # so make sure they expand to something first.
+  # subshell to avoid surprising caller with shopts.
+  (
+    shopt -s nullglob dotglob
+    set -- "$source"/!(tmp|.|..)
+    [[ $# == 0 ]] || cp -a "$@" "$target"
+  )
+}
+
+
+sub-env() {
+
+  WHITELIST=${2:-''}
+  BLACKLIST=${3:-'^(GIT_DIR|STACK|PYTHONHOME|LD_LIBRARY_PATH|LIBRARY_PATH|PATH)$'}
+
+  # Python-specific variables.
+  export PYHONHOME=$BUILD_DIR/.heroku/python
+  export PYTHONPATH=$BUILD_DIR/
+
+  (
+    if [ -d "$ENV_DIR" ]; then
+      for e in $(ls $ENV_DIR); do
+        echo "$e" | grep -E "$WHITELIST" | grep -qvE "$BLACKLIST" &&
+        export "$e=$(cat $ENV_DIR/$e)"
+        :
+      done
+    fi
+
+    $1
+
+  )
+}
+
+# Measure the size of the Python installation.
+measure-size() {
+  echo "$((du -s .heroku/python 2>/dev/null || echo 0) | awk '{print $1}')"
+}
+

bin/warnings

@@ -0,0 +1,65 @@
+shopt -s extglob
+
+old-platform() {
+  if grep -qi 'InsecurePlatformWarning' "$WARNINGS_LOG"; then
+    echo
+    puts-warn "Hello! It looks like your application is using an outdated version of Python."
+    puts-warn "This caused the security warning you saw above during the 'pip install' step."
+    puts-warn "We recommend '$RECOMMENDED_PYTHON_VERSION', which you can specify in a 'runtime.txt' file."
+    puts-warn "  -- Much Love, Heroku."
+    mcount 'warnings.python.old'
+  fi
+}
+
+pylibmc-missing() {
+  if grep -qi 'fatal error: libmemcached/memcached.h: No such file or directory' "$WARNINGS_LOG"; then
+    echo
+    puts-warn "Hello! There was a problem with your build related to libmemcache."
+    puts-warn "The Python library 'pylibmc' must be explicitly specified in 'requirements.txt' in order to build correctly."
+    puts-warn "Once you do that, everything should work as expected.   -- Much Love, Heroku."
+    mcount 'warnings.libmemcache'
+  fi
+}
+
+scipy-included() {
+  if grep -qi 'running setup.py install for scipy' "$WARNINGS_LOG"; then
+    echo
+    puts-warn "Hello! It looks like you're trying to use scipy on Heroku."
+    puts-warn "Unfortunately, at this time, we do not directly support this library."
+    puts-warn "There is, however, a buildpack available that makes it possible to use it on Heroku."
+    puts-warn "You can learn more here:  https://devcenter.heroku.com/articles/python-c-deps"
+    puts-warn "Sorry for the inconvenience.   -- Much Love, Heroku."
+    mcount 'warnings.scipy'
+  fi
+}
+
+distribute-included() {
+  if grep -qi 'Running setup.py install for distribute' "$WARNINGS_LOG"; then
+    echo
+    puts-warn "Hello! Your requirements.txt file contains the distribute package."
+    puts-warn "This library is automatically installed by Heroku and shouldn't be in"
+    puts-warn "Your requirements.txt file. This can cause unexpected behavior."
+    puts-warn "  -- Much Love, Heroku."
+    mcount 'warnings.distribute'
+  fi
+}
+
+six-included() {
+  if grep -qi 'Running setup.py install for six' "$WARNINGS_LOG"; then
+    echo
+    puts-warn "Hello! Your requirements.txt file contains the six package."
+    puts-warn "This library is automatically installed by Heroku and shouldn't be in"
+    puts-warn "Your requirements.txt file. This can cause unexpected behavior."
+    puts-warn "  -- Much Love, Heroku."
+    mcount 'warnings.six'
+  fi
+}
+
+show-warnings() {
+  old-platform
+  pylibmc-missing
+  scipy-included
+  distribute-included
+  six-included
+}
+

builds/README.md

@@ -0,0 +1,41 @@
+# Python Buildpack Binaries
+
+For Cedar-14 stack
+------------------
+
+To get started with it, create an app on Heroku inside a clone of this repository, and set your S3 config vars:
+
+    $ heroku create --buildpack https://github.com/heroku/heroku-buildpack-python#not-heroku
+    $ heroku config:set WORKSPACE_DIR=builds
+    $ heroku config:set AWS_ACCESS_KEY_ID=<your_aws_key>
+    $ heroku config:set AWS_SECRET_ACCESS_KEY=<your_aws_secret>
+    $ heroku config:set S3_BUCKET=<your_s3_bucket_name>
+
+
+Then, shell into an instance and run a build by giving the name of the formula inside `builds`:
+
+    $ heroku run bash
+    Running `bash` attached to terminal... up, run.6880
+    ~ $ bob build runtimes/python-2.7.6
+
+    Fetching dependencies... found 2:
+      - libraries/sqlite
+
+    Building formula runtimes/python-2.7.6:
+        === Building Python 2.7.6
+        Fetching Python v2.7.6 source...
+        Compiling...
+
+If this works, run `bob deploy` instead of `bob build` to have the result uploaded to S3 for you.
+
+To speed things up drastically, it'll usually be a good idea to `heroku run bash --size PX` instead.
+
+For Heroku-16 stack
+-------------------
+
+1. Ensure GNU Make and Docker are installed.
+2. From the root of the buildpack repository, run: `make buildenv-heroku-16`
+3. Follow the instructions displayed!
+
+
+Enjoy :)

builds/libraries/sqlite

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+
+OUT_PREFIX=$1
+
+echo "Building SQLite..."
+
+
+SOURCE_TARBALL='https://www.sqlite.org/sqlite-autoconf-3070900.tar.gz'
+
+curl $SOURCE_TARBALL | tar xz
+# jx
+mv sqlite-autoconf-3070900 sqlite
+
+cd sqlite
+./configure --prefix=$OUT_PREFIX
+make
+make install
+
+# Cleanup
+cd ..
+rm -fr sqlite

builds/libraries/vendor/gdal

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/vendor/
+
+OUT_PREFIX=$1
+
+# Use new path, containing autoconf.
+export PATH="/app/.heroku/python/bin/:$PATH"
+hash -r
+
+
+echo "Building gdal..."
+
+SOURCE_TARBALL='http://download.osgeo.org/gdal/1.11.1/gdal-1.11.1.tar.gz'
+
+curl -L $SOURCE_TARBALL | tar zx
+
+cd gdal-1.11.1
+./configure --prefix=$OUT_PREFIX --enable-static=no  &&
+make
+make install
+
+# Cleanup
+cd ..

builds/libraries/vendor/geos

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/vendor/
+
+OUT_PREFIX=$1
+
+# Use new path, containing autoconf.
+export PATH="/app/.heroku/python/bin/:$PATH"
+hash -r
+
+
+echo "Building geos..."
+
+SOURCE_TARBALL='http://download.osgeo.org/geos/geos-3.4.3.tar.bz2'
+
+curl -L $SOURCE_TARBALL | tar xj
+
+cd geos-3.4.3
+./configure --prefix=$OUT_PREFIX --enable-static=no &&
+make
+make install
+
+# Cleanup
+cd ..

builds/libraries/vendor/libffi

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/vendor/
+
+OUT_PREFIX=$1
+
+# Skip the build for heroku-16.
+if [[ $S3_PREFIX == "heroku-16" ]]; then
+    exit 0
+fi
+
+# Use new path, containing autoconf.
+export PATH="/app/.heroku/python/bin/:$PATH"
+hash -r
+
+
+echo "Building libffi..."
+
+SOURCE_TARBALL='ftp://sourceware.org/pub/libffi/libffi-3.1.tar.gz'
+
+curl -L $SOURCE_TARBALL | tar x
+
+cd libffi-3.1
+./configure --prefix=$OUT_PREFIX --disable-static &&
+make
+make install
+
+# Cleanup
+cd ..

builds/libraries/vendor/libmemcache

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/vendor/
+
+OUT_PREFIX=$1
+
+# Skip the build for heroku-16.
+if [[ $S3_PREFIX == "heroku-16" ]]; then
+    exit 0
+fi
+
+# fail hard
+set -o pipefail
+# fail harder
+set -eux
+
+DEFAULT_VERSION="1.0.18"
+dep_version=${VERSION:-$DEFAULT_VERSION}
+dep_dirname=libmemcached-${dep_version}
+dep_archive_name=${dep_dirname}.tar.gz
+dep_url=https://launchpad.net/libmemcached/1.0/${dep_version}/+download/${dep_archive_name}
+
+# SASL Support.
+echo "-----> Building cyrus-sasl 2.1.26..."
+
+curl -LO ftp://ftp.cyrusimap.org/cyrus-sasl/cyrus-sasl-2.1.26.tar.gz
+# FTP doesn't play well with piping into tar xz
+tar xzf cyrus-sasl-2.1.26.tar.gz
+
+pushd cyrus-sasl-2.1.26
+./configure --prefix=${OUT_PREFIX} --with-plugindir=${OUT_PREFIX}lib/sasl2 --with-configdir=${OUT_PREFIX}lib/sasl2
+
+make -s -j 9
+make install -s
+popd
+
+echo "-----> Building libmemcached ${dep_version}..."
+
+curl -L ${dep_url} | tar xz
+pushd ${dep_dirname}
+CPPFLAGS=-I${OUT_PREFIX}/include LDFLAGS=-L${OUT_PREFIX}/lib ./configure --prefix=${OUT_PREFIX} --without-memcached
+make -s -j 9
+make install -s
+popd
+
+echo "-----> Done."

builds/libraries/vendor/proj

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/vendor/
+
+OUT_PREFIX=$1
+
+# Use new path, containing autoconf.
+export PATH="/app/.heroku/python/bin/:$PATH"
+hash -r
+
+
+echo "Building gdal..."
+
+SOURCE_TARBALL='http://download.osgeo.org/proj/proj-4.8.0.tar.gz'
+
+curl -L $SOURCE_TARBALL | tar zx
+
+cd proj-4.8.0
+./configure --prefix=$OUT_PREFIX --enable-static=no &&
+make
+make install
+
+# Cleanup
+cd ..

builds/runtimes/pypy-5.3.1

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+# NOTICE: This formula only works for the cedar-14 stack, not cedar.
+
+OUT_PREFIX=$1
+
+echo "Building PyPy..."
+SOURCE_TARBALL='https://bitbucket.org/pypy/pypy/downloads/pypy2-v5.3.1-linux64.tar.bz2'
+curl -L $SOURCE_TARBALL | tar jx
+cp -R pypy2-v5.3.1-linux64/* $OUT_PREFIX
+
+ln $OUT_PREFIX/bin/pypy $OUT_PREFIX/bin/python

builds/runtimes/pypy-5.6.0

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+# NOTICE: This formula only works for the cedar-14 stack, not cedar.
+
+OUT_PREFIX=$1
+
+echo "Building PyPy..."
+SOURCE_TARBALL='https://bitbucket.org/pypy/pypy/downloads/pypy2-v5.6.0-linux64.tar.bz2'
+curl -L $SOURCE_TARBALL | tar jx
+cp -R pypy2-v5.6.0-linux64/* $OUT_PREFIX
+
+ln $OUT_PREFIX/bin/pypy $OUT_PREFIX/bin/python

builds/runtimes/pypy-5.7.0

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+# NOTICE: This formula only works for the cedar-14 and heroku-16 stacks, not cedar.
+
+OUT_PREFIX=$1
+
+echo "Building PyPy..."
+SOURCE_TARBALL='https://bitbucket.org/pypy/pypy/downloads/pypy2-v5.7.0-linux64.tar.bz2'
+curl -L $SOURCE_TARBALL | tar jx
+cp -R pypy2-v5.7.0-linux64/* $OUT_PREFIX
+
+ln $OUT_PREFIX/bin/pypy $OUT_PREFIX/bin/python

builds/runtimes/pypy-5.7.1

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+# NOTICE: This formula only works for the cedar-14 stack, not cedar.
+
+OUT_PREFIX=$1
+
+echo "Building PyPy..."
+SOURCE_TARBALL='https://bitbucket.org/pypy/pypy/downloads/pypy2-v5.7.1-linux64.tar.bz2'
+curl -L $SOURCE_TARBALL | tar jx
+cp -R pypy2-v5.7.1-linux64/* $OUT_PREFIX
+
+ln $OUT_PREFIX/bin/pypy $OUT_PREFIX/bin/python

builds/runtimes/pypy3-2.4.0

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+# NOTICE: This formula only works for the cedar-14 stack, not cedar.
+
+OUT_PREFIX=$1
+
+echo "Building PyPy..."
+SOURCE_TARBALL='https://bitbucket.org/pypy/pypy/downloads/pypy3-2.4.0-linux64.tar.bz2'
+curl -L $SOURCE_TARBALL | tar jx
+cp -R pypy3-2.4.0-linux64/* $OUT_PREFIX
+
+ln $OUT_PREFIX/bin/pypy3 $OUT_PREFIX/bin/python

builds/runtimes/pypy3-5.5.0

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+# NOTICE: This formula only works for the cedar-14 stack, not cedar.
+
+OUT_PREFIX=$1
+
+echo "Building PyPy..."
+SOURCE_TARBALL='https://bitbucket.org/pypy/pypy/downloads/pypy3.3-v5.5.0-alpha-linux64.tar.bz2'
+curl -L $SOURCE_TARBALL | tar jx
+cp -R pypy3-v5.5.0-linux64/* $OUT_PREFIX
+
+ln $OUT_PREFIX/bin/pypy3 $OUT_PREFIX/bin/python

builds/runtimes/pypy3-5.7.1

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+OUT_PREFIX=$1
+
+echo "Building PyPy..."
+SOURCE_TARBALL='https://bitbucket.org/pypy/pypy/downloads/pypy3-v5.7.1-linux64.tar.bz2'
+curl -L $SOURCE_TARBALL | tar jx
+cp -R pypy3-v5.7.1-linux64/* $OUT_PREFIX
+
+ln $OUT_PREFIX/bin/pypy3 $OUT_PREFIX/bin/python

builds/runtimes/python-2.7.10

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+OUT_PREFIX=$1
+
+echo "Building Python..."
+SOURCE_TARBALL='https://python.org/ftp/python/2.7.10/Python-2.7.10.tgz'
+curl -L $SOURCE_TARBALL | tar xz
+mv Python-2.7.10 src
+cd src
+
+./configure --prefix=$OUT_PREFIX  --with-ensurepip=no
+make
+make install

builds/runtimes/python-2.7.11

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+OUT_PREFIX=$1
+
+echo "Building Python..."
+SOURCE_TARBALL='https://python.org/ftp/python/2.7.11/Python-2.7.11.tgz'
+curl -L $SOURCE_TARBALL | tar xz
+mv Python-2.7.11 src
+cd src
+
+./configure --prefix=$OUT_PREFIX  --with-ensurepip=no
+make
+make install

builds/runtimes/python-2.7.12

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+OUT_PREFIX=$1
+
+echo "Building Python..."
+SOURCE_TARBALL='https://python.org/ftp/python/2.7.12/Python-2.7.12.tgz'
+curl -L $SOURCE_TARBALL | tar xz
+mv Python-2.7.12 src
+cd src
+
+./configure --prefix=$OUT_PREFIX  --with-ensurepip=no
+make
+make install

builds/runtimes/python-2.7.13

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+OUT_PREFIX=$1
+
+echo "Building Python..."
+SOURCE_TARBALL='https://python.org/ftp/python/2.7.13/Python-2.7.13.tgz'
+curl -L $SOURCE_TARBALL | tar xz
+mv Python-2.7.13 src
+cd src
+
+./configure --prefix=$OUT_PREFIX  --enable-unicode=ucs4 --with-ensurepip=no
+make
+make install

builds/runtimes/python-2.7.9

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+OUT_PREFIX=$1
+
+echo "Building Python..."
+SOURCE_TARBALL='https://python.org/ftp/python/2.7.9/Python-2.7.9.tgz'
+curl -L $SOURCE_TARBALL | tar xz
+mv Python-2.7.9 src
+cd src
+
+./configure --prefix=$OUT_PREFIX  --with-ensurepip=no
+make
+make install

builds/runtimes/python-3.5.2

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+OUT_PREFIX=$1
+
+echo "Building Python..."
+SOURCE_TARBALL='https://python.org/ftp/python/3.5.2/Python-3.5.2.tgz'
+curl -L $SOURCE_TARBALL | tar xz
+mv Python-3.5.2 src
+cd src
+
+./configure --prefix=$OUT_PREFIX --with-ensurepip=no
+make
+make install
+
+# ln $OUT_PREFIX/bin/python3 $OUT_PREFIX/bin/python
+

builds/runtimes/python-3.5.3

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+OUT_PREFIX=$1
+
+echo "Building Python..."
+SOURCE_TARBALL='https://python.org/ftp/python/3.5.3/Python-3.5.3.tgz'
+curl -L $SOURCE_TARBALL | tar xz
+mv Python-3.5.3 src
+cd src
+
+./configure --prefix=$OUT_PREFIX --with-ensurepip=no
+make
+make install
+
+# ln $OUT_PREFIX/bin/python3 $OUT_PREFIX/bin/python
+

builds/runtimes/python-3.6.0

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+OUT_PREFIX=$1
+
+echo "Building Python..."
+SOURCE_TARBALL='https://python.org/ftp/python/3.6.0/Python-3.6.0.tgz'
+curl -L $SOURCE_TARBALL | tar xz
+mv Python-3.6.0 src
+cd src
+
+./configure --prefix=$OUT_PREFIX --with-ensurepip=no
+make
+make install
+
+ln $OUT_PREFIX/bin/python3 $OUT_PREFIX/bin/python
+

builds/runtimes/python-3.6.1

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+# Build Path: /app/.heroku/python/
+# Build Deps: libraries/sqlite
+
+OUT_PREFIX=$1
+
+echo "Building Python..."
+SOURCE_TARBALL='https://python.org/ftp/python/3.6.1/Python-3.6.1.tgz'
+curl -L $SOURCE_TARBALL | tar xz
+mv Python-3.6.1 src
+cd src
+
+./configure --prefix=$OUT_PREFIX --with-ensurepip=no
+make
+make install
+
+ln $OUT_PREFIX/bin/python3 $OUT_PREFIX/bin/python
+

requirements.txt

@@ -0,0 +1 @@
+bob-builder==0.0.13

test/distutils/envoy.py

@@ -1,210 +0,0 @@
-# -*- coding: utf-8 -*-
-"""
-envoy.core
-~~~~~~~~~~
-
-This module provides envoy awesomeness.
-
-Copyright 2012, Kenneth Reitz.
-MIT Licensed.
-
-"""
-
-import os
-import shlex
-import subprocess
-import threading
-
-
-__version__ = '0.0.2'
-__license__ = 'MIT'
-__author__ = 'Kenneth Reitz'
-
-
-class Command(object):
-    def __init__(self, cmd):
-        self.cmd = cmd
-        self.process = None
-        self.out = None
-        self.err = None
-        self.returncode = None
-        self.data = None
-
-    def run(self, data, timeout, env):
-        self.data = data
-        environ = dict(os.environ).update(env or {})
-
-        def target():
-
-            self.process = subprocess.Popen(self.cmd,
-                universal_newlines=True,
-                shell=False,
-                env=environ,
-                stdin=subprocess.PIPE,
-                stdout=subprocess.PIPE,
-                stderr=subprocess.PIPE,
-                bufsize=0,
-            )
-
-            self.out, self.err = self.process.communicate(self.data)
-
-        thread = threading.Thread(target=target)
-        thread.start()
-
-        thread.join(timeout)
-        if thread.is_alive():
-            self.process.terminate()
-            thread.join()
-        self.returncode = self.process.returncode
-        return self.out, self.err
-
-
-class ConnectedCommand(object):
-    def __init__(self,
-        process=None,
-        std_in=None,
-        std_out=None,
-        std_err=None):
-
-        self._process = process
-        self.std_in = std_in
-        self.std_out = std_out
-        self.std_err = std_out
-
-    def __enter__(self):
-        return self
-
-    def __exit__(self, type, value, traceback):
-        self.kill()
-
-    @property
-    def status_code(self):
-        """The status code of the process.
-        If the code is None, assume that it's still running.
-        """
-        if self._status_code is not None:
-            return self._status_code
-
-        # investigate
-        return None
-
-    @property
-    def pid(self):
-        """The process' PID."""
-        return self._process.pid
-
-    def kill(self):
-        """Kills the process."""
-        return self._process.kill()
-
-    def expect(self, bytes, stream=None):
-        """Block until given bytes appear in the stream."""
-        if stream is None:
-            stream = self.std_out
-        pass
-
-    def send(self, end='\n'):
-        """Sends a line to std_in."""
-        #TODO: Y U LINE BUFFER
-        pass
-
-    def block(self):
-        """Blocks until command finishes. Returns Response instance."""
-        self._status_code = self._process.wait()
-
-
-
-class Response(object):
-    """A command's response"""
-
-    def __init__(self, process=None):
-        super(Response, self).__init__()
-
-        self._process = process
-        self.command = None
-        self.std_err = None
-        self.std_out = None
-        self.status_code = None
-        self.history = []
-
-
-    def __repr__(self):
-        if len(self.command):
-            return '<Response [{0}]>'.format(self.command[0])
-        else:
-            return '<Response>'
-
-
-def expand_args(command):
-    """Parses command strings and returns a Popen-ready list."""
-
-    # Prepare arguments.
-    if isinstance(command, basestring):
-        splitter = shlex.shlex(command, posix=True)
-        splitter.whitespace = '|'
-        splitter.whitespace_split = True
-        command = []
-
-        while True:
-            token = splitter.get_token()
-            if token:
-                command.append(token)
-            else:
-                break
-
-        command = map(shlex.split, command)
-
-    return command
-
-
-def run(command, data=None, timeout=None, env=None):
-    """Executes a given commmand and returns Response.
-
-    Blocks until process is complete, or timeout is reached.
-    """
-
-    command = expand_args(command)
-
-    history = []
-    for c in command:
-
-        if len(history):
-            # due to broken pipe problems pass only first 10MB
-            data = history[-1].std_out[0:10*1024]
-
-        cmd = Command(c)
-        out, err = cmd.run(data, timeout, env)
-
-        r = Response(process=cmd)
-
-        r.command = c
-        r.std_out = out
-        r.std_err = err
-        r.status_code = cmd.returncode
-
-        history.append(r)
-
-    r = history.pop()
-    r.history = history
-
-    return r
-
-
-def connect(command, data=None, env=None):
-    """Spawns a new process from the given command."""
-
-    # TODO: support piped commands
-    command_str = expand_args(command).pop()
-    environ = dict(os.environ).update(env or {})
-
-    process = subprocess.Popen(command_str,
-        universal_newlines=True,
-        shell=False,
-        env=environ,
-        stdin=subprocess.PIPE,
-        stdout=subprocess.PIPE,
-        stderr=subprocess.PIPE,
-        bufsize=0,
-    )
-
-    return ConnectedCommand(process=process)

test/distutils/setup.py

@@ -1,43 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-import os
-import sys
-import envoy
-
-try:
-    from setuptools import setup
-except ImportError:
-    from distutils.core import setup
-
-
-
-if sys.argv[-1] == "publish":
-    os.system("python setup.py sdist upload")
-    sys.exit()
-
-required = []
-
-setup(
-    name='envoy',
-    version=envoy.__version__,
-    description='Simple API for running external processes.',
-    author='Kenneth Reitz',
-    author_email='me@kennethreitz.com',
-    url='https://github.com/kennethreitz/envoy',
-    py_modules= ['envoy'],
-    install_requires=required,
-    license='MIT',
-    classifiers=(
-        'Development Status :: 5 - Production/Stable',
-        'Intended Audience :: Developers',
-        'Natural Language :: English',
-        'License :: OSI Approved :: MIT License',
-        'Programming Language :: Python',
-        'Programming Language :: Python :: 2.5',
-        'Programming Language :: Python :: 2.6',
-        'Programming Language :: Python :: 2.7',
-        # 'Programming Language :: Python :: 3.0',
-        # 'Programming Language :: Python :: 3.1',
-    ),
-)

test/django-1.3-skeleton/haystack/manage.py

@@ -1,14 +0,0 @@
-#!/usr/bin/env python
-from django.core.management import execute_manager
-import imp
-try:
-    imp.find_module('settings') # Assumed to be in the same directory.
-except ImportError:
-    import sys
-    sys.stderr.write("Error: Can't find the file 'settings.py' in the directory containing %r. It appears you've customized things.\nYou'll have to run django-admin.py, passing it your settings module.\n" % __file__)
-    sys.exit(1)
-
-import settings
-
-if __name__ == "__main__":
-    execute_manager(settings)

test/django-1.3-skeleton/haystack/settings.py

@@ -1,145 +0,0 @@
-# Django settings for haystack project.
-
-DEBUG = True
-TEMPLATE_DEBUG = DEBUG
-
-ADMINS = (
-    # ('Your Name', 'your_email@example.com'),
-)
-
-MANAGERS = ADMINS
-
-DATABASES = {
-    'default': {
-        'ENGINE': 'django.db.backends.', # Add 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'.
-        'NAME': '',                      # Or path to database file if using sqlite3.
-        'USER': '',                      # Not used with sqlite3.
-        'PASSWORD': '',                  # Not used with sqlite3.
-        'HOST': '',                      # Set to empty string for localhost. Not used with sqlite3.
-        'PORT': '',                      # Set to empty string for default. Not used with sqlite3.
-    }
-}
-
-# Local time zone for this installation. Choices can be found here:
-# http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
-# although not all choices may be available on all operating systems.
-# On Unix systems, a value of None will cause Django to use the same
-# timezone as the operating system.
-# If running in a Windows environment this must be set to the same as your
-# system time zone.
-TIME_ZONE = 'America/Chicago'
-
-# Language code for this installation. All choices can be found here:
-# http://www.i18nguy.com/unicode/language-identifiers.html
-LANGUAGE_CODE = 'en-us'
-
-SITE_ID = 1
-
-# If you set this to False, Django will make some optimizations so as not
-# to load the internationalization machinery.
-USE_I18N = True
-
-# If you set this to False, Django will not format dates, numbers and
-# calendars according to the current locale
-USE_L10N = True
-
-# Absolute filesystem path to the directory that will hold user-uploaded files.
-# Example: "/home/media/media.lawrence.com/media/"
-MEDIA_ROOT = ''
-
-# URL that handles the media served from MEDIA_ROOT. Make sure to use a
-# trailing slash.
-# Examples: "http://media.lawrence.com/media/", "http://example.com/media/"
-MEDIA_URL = ''
-
-# Absolute path to the directory static files should be collected to.
-# Don't put anything in this directory yourself; store your static files
-# in apps' "static/" subdirectories and in STATICFILES_DIRS.
-# Example: "/home/media/media.lawrence.com/static/"
-STATIC_ROOT = ''
-
-# URL prefix for static files.
-# Example: "http://media.lawrence.com/static/"
-STATIC_URL = '/static/'
-
-# URL prefix for admin static files -- CSS, JavaScript and images.
-# Make sure to use a trailing slash.
-# Examples: "http://foo.com/static/admin/", "/static/admin/".
-ADMIN_MEDIA_PREFIX = '/static/admin/'
-
-# Additional locations of static files
-STATICFILES_DIRS = (
-    # Put strings here, like "/home/html/static" or "C:/www/django/static".
-    # Always use forward slashes, even on Windows.
-    # Don't forget to use absolute paths, not relative paths.
-)
-
-# List of finder classes that know how to find static files in
-# various locations.
-STATICFILES_FINDERS = (
-    'django.contrib.staticfiles.finders.FileSystemFinder',
-    'django.contrib.staticfiles.finders.AppDirectoriesFinder',
-#    'django.contrib.staticfiles.finders.DefaultStorageFinder',
-)
-
-# Make this unique, and don't share it with anybody.
-SECRET_KEY = '@$87s&royz$nvav^3*$4u6^htybq*o=ge504rqp7r2)@ec*g(3'
-
-# List of callables that know how to import templates from various sources.
-TEMPLATE_LOADERS = (
-    'django.template.loaders.filesystem.Loader',
-    'django.template.loaders.app_directories.Loader',
-#     'django.template.loaders.eggs.Loader',
-)
-
-MIDDLEWARE_CLASSES = (
-    'django.middleware.common.CommonMiddleware',
-    'django.contrib.sessions.middleware.SessionMiddleware',
-    'django.middleware.csrf.CsrfViewMiddleware',
-    'django.contrib.auth.middleware.AuthenticationMiddleware',
-    'django.contrib.messages.middleware.MessageMiddleware',
-)
-
-ROOT_URLCONF = 'haystack.urls'
-
-TEMPLATE_DIRS = (
-    # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates".
-    # Always use forward slashes, even on Windows.
-    # Don't forget to use absolute paths, not relative paths.
-)
-
-INSTALLED_APPS = (
-    'django.contrib.auth',
-    'django.contrib.contenttypes',
-    'django.contrib.sessions',
-    'django.contrib.sites',
-    'django.contrib.messages',
-    'django.contrib.staticfiles',
-    # Uncomment the next line to enable the admin:
-    # 'django.contrib.admin',
-    # Uncomment the next line to enable admin documentation:
-    # 'django.contrib.admindocs',
-)
-
-# A sample logging configuration. The only tangible logging
-# performed by this configuration is to send an email to
-# the site admins on every HTTP 500 error.
-# See http://docs.djangoproject.com/en/dev/topics/logging for
-# more details on how to customize your logging configuration.
-LOGGING = {
-    'version': 1,
-    'disable_existing_loggers': False,
-    'handlers': {
-        'mail_admins': {
-            'level': 'ERROR',
-            'class': 'django.utils.log.AdminEmailHandler'
-        }
-    },
-    'loggers': {
-        'django.request': {
-            'handlers': ['mail_admins'],
-            'level': 'ERROR',
-            'propagate': True,
-        },
-    }
-}

test/django-1.3-skeleton/haystack/urls.py

@@ -1,17 +0,0 @@
-from django.conf.urls.defaults import patterns, include, url
-
-# Uncomment the next two lines to enable the admin:
-# from django.contrib import admin
-# admin.autodiscover()
-
-urlpatterns = patterns('',
-    # Examples:
-    # url(r'^$', 'haystack.views.home', name='home'),
-    # url(r'^haystack/', include('haystack.foo.urls')),
-
-    # Uncomment the admin/doc line below to enable admin documentation:
-    # url(r'^admin/doc/', include('django.contrib.admindocs.urls')),
-
-    # Uncomment the next line to enable the admin:
-    # url(r'^admin/', include(admin.site.urls)),
-)

test/django-1.3-skeleton/requirements.txt

@@ -1 +0,0 @@
-django==1.3

test/django-1.4-skeleton/haystack/settings.py

@@ -1,154 +0,0 @@
-# Django settings for haystack project.
-
-DEBUG = True
-TEMPLATE_DEBUG = DEBUG
-
-ADMINS = (
-    # ('Your Name', 'your_email@example.com'),
-)
-
-MANAGERS = ADMINS
-
-DATABASES = {
-    'default': {
-        'ENGINE': 'django.db.backends.', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.
-        'NAME': '',                      # Or path to database file if using sqlite3.
-        'USER': '',                      # Not used with sqlite3.
-        'PASSWORD': '',                  # Not used with sqlite3.
-        'HOST': '',                      # Set to empty string for localhost. Not used with sqlite3.
-        'PORT': '',                      # Set to empty string for default. Not used with sqlite3.
-    }
-}
-
-# Local time zone for this installation. Choices can be found here:
-# http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
-# although not all choices may be available on all operating systems.
-# On Unix systems, a value of None will cause Django to use the same
-# timezone as the operating system.
-# If running in a Windows environment this must be set to the same as your
-# system time zone.
-TIME_ZONE = 'America/Chicago'
-
-# Language code for this installation. All choices can be found here:
-# http://www.i18nguy.com/unicode/language-identifiers.html
-LANGUAGE_CODE = 'en-us'
-
-SITE_ID = 1
-
-# If you set this to False, Django will make some optimizations so as not
-# to load the internationalization machinery.
-USE_I18N = True
-
-# If you set this to False, Django will not format dates, numbers and
-# calendars according to the current locale.
-USE_L10N = True
-
-# If you set this to False, Django will not use timezone-aware datetimes.
-USE_TZ = True
-
-# Absolute filesystem path to the directory that will hold user-uploaded files.
-# Example: "/home/media/media.lawrence.com/media/"
-MEDIA_ROOT = ''
-
-# URL that handles the media served from MEDIA_ROOT. Make sure to use a
-# trailing slash.
-# Examples: "http://media.lawrence.com/media/", "http://example.com/media/"
-MEDIA_URL = ''
-
-# Absolute path to the directory static files should be collected to.
-# Don't put anything in this directory yourself; store your static files
-# in apps' "static/" subdirectories and in STATICFILES_DIRS.
-# Example: "/home/media/media.lawrence.com/static/"
-STATIC_ROOT = ''
-
-# URL prefix for static files.
-# Example: "http://media.lawrence.com/static/"
-STATIC_URL = '/static/'
-
-# Additional locations of static files
-STATICFILES_DIRS = (
-    # Put strings here, like "/home/html/static" or "C:/www/django/static".
-    # Always use forward slashes, even on Windows.
-    # Don't forget to use absolute paths, not relative paths.
-)
-
-# List of finder classes that know how to find static files in
-# various locations.
-STATICFILES_FINDERS = (
-    'django.contrib.staticfiles.finders.FileSystemFinder',
-    'django.contrib.staticfiles.finders.AppDirectoriesFinder',
-#    'django.contrib.staticfiles.finders.DefaultStorageFinder',
-)
-
-# Make this unique, and don't share it with anybody.
-SECRET_KEY = '633$+yuh67kvt_v8gpi9zmkvqb*m5nts6&a=q^dwhi+e#^j_ki'
-
-# List of callables that know how to import templates from various sources.
-TEMPLATE_LOADERS = (
-    'django.template.loaders.filesystem.Loader',
-    'django.template.loaders.app_directories.Loader',
-#     'django.template.loaders.eggs.Loader',
-)
-
-MIDDLEWARE_CLASSES = (
-    'django.middleware.common.CommonMiddleware',
-    'django.contrib.sessions.middleware.SessionMiddleware',
-    'django.middleware.csrf.CsrfViewMiddleware',
-    'django.contrib.auth.middleware.AuthenticationMiddleware',
-    'django.contrib.messages.middleware.MessageMiddleware',
-    # Uncomment the next line for simple clickjacking protection:
-    # 'django.middleware.clickjacking.XFrameOptionsMiddleware',
-)
-
-ROOT_URLCONF = 'haystack.urls'
-
-# Python dotted path to the WSGI application used by Django's runserver.
-WSGI_APPLICATION = 'haystack.wsgi.application'
-
-TEMPLATE_DIRS = (
-    # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates".
-    # Always use forward slashes, even on Windows.
-    # Don't forget to use absolute paths, not relative paths.
-)
-
-INSTALLED_APPS = (
-    'django.contrib.auth',
-    'django.contrib.contenttypes',
-    'django.contrib.sessions',
-    'django.contrib.sites',
-    'django.contrib.messages',
-    'django.contrib.staticfiles',
-    # Uncomment the next line to enable the admin:
-    # 'django.contrib.admin',
-    # Uncomment the next line to enable admin documentation:
-    # 'django.contrib.admindocs',
-)
-
-# A sample logging configuration. The only tangible logging
-# performed by this configuration is to send an email to
-# the site admins on every HTTP 500 error when DEBUG=False.
-# See http://docs.djangoproject.com/en/dev/topics/logging for
-# more details on how to customize your logging configuration.
-LOGGING = {
-    'version': 1,
-    'disable_existing_loggers': False,
-    'filters': {
-        'require_debug_false': {
-            '()': 'django.utils.log.RequireDebugFalse'
-        }
-    },
-    'handlers': {
-        'mail_admins': {
-            'level': 'ERROR',
-            'filters': ['require_debug_false'],
-            'class': 'django.utils.log.AdminEmailHandler'
-        }
-    },
-    'loggers': {
-        'django.request': {
-            'handlers': ['mail_admins'],
-            'level': 'ERROR',
-            'propagate': True,
-        },
-    }
-}

test/django-1.4-skeleton/haystack/urls.py

@@ -1,17 +0,0 @@
-from django.conf.urls import patterns, include, url
-
-# Uncomment the next two lines to enable the admin:
-# from django.contrib import admin
-# admin.autodiscover()
-
-urlpatterns = patterns('',
-    # Examples:
-    # url(r'^$', 'haystack.views.home', name='home'),
-    # url(r'^haystack/', include('haystack.foo.urls')),
-
-    # Uncomment the admin/doc line below to enable admin documentation:
-    # url(r'^admin/doc/', include('django.contrib.admindocs.urls')),
-
-    # Uncomment the next line to enable the admin:
-    # url(r'^admin/', include(admin.site.urls)),
-)

test/django-1.4-skeleton/haystack/wsgi.py

@@ -1,28 +0,0 @@
-"""
-WSGI config for haystack project.
-
-This module contains the WSGI application used by Django's development server
-and any production WSGI deployments. It should expose a module-level variable
-named ``application``. Django's ``runserver`` and ``runfcgi`` commands discover
-this application via the ``WSGI_APPLICATION`` setting.
-
-Usually you will have the standard Django WSGI application here, but it also
-might make sense to replace the whole Django WSGI application with a custom one
-that later delegates to the Django one. For example, you could introduce WSGI
-middleware here, or combine a Django application with an application of another
-framework.
-
-"""
-import os
-
-os.environ.setdefault("DJANGO_SETTINGS_MODULE", "haystack.settings")
-
-# This application object is used by any WSGI server configured to use this
-# file. This includes Django's development server, if the WSGI_APPLICATION
-# setting points here.
-from django.core.wsgi import get_wsgi_application
-application = get_wsgi_application()
-
-# Apply WSGI middleware here.
-# from helloworld.wsgi import HelloWorldApplication
-# application = HelloWorldApplication(application)

test/django-1.4-skeleton/manage.py

@@ -1,10 +0,0 @@
-#!/usr/bin/env python
-import os
-import sys
-
-if __name__ == "__main__":
-    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "haystack.settings")
-
-    from django.core.management import execute_from_command_line
-
-    execute_from_command_line(sys.argv)

test/django-1.4-skeleton/requirements.txt

@@ -1 +0,0 @@
-Django==1.4

test/fixtures/nltk/nltk.txt

@@ -0,0 +1 @@
+wordnet

test/fixtures/nltk/requirements.txt

@@ -0,0 +1 @@
+nltk

test/fixtures/pipenv-version/Pipfile

@@ -0,0 +1,9 @@
+[[source]]
+url = "https://pypi.python.org/simple"
+verify_ssl = true
+
+[packages]
+requests = "*"
+
+[requires]
+python_version = "3.6"

test/fixtures/pipenv-version/Pipfile.lock

@@ -0,0 +1,23 @@
+{
+    "default": {
+        "requests": {
+            "version": "==2.13.0",
+            "hash": "sha256:1a720e8862a41aa22e339373b526f508ef0c8988baf48b84d3fc891a8e237efb"
+        }
+    },
+    "develop": {},
+    "_meta": {
+        "sources": [
+            {
+                "url": "https://pypi.python.org/simple",
+                "verify_ssl": true
+            }
+        ],
+        "requires": {
+            "python_version": "3.6"
+        },
+        "hash": {
+            "sha256": "5866990104fc8f27d13cdf01abc2a32c553129e03f666316cacc5b42d3e0884e"
+        }
+    }
+}

test/fixtures/pipenv/Pipfile

@@ -0,0 +1,2 @@
+[packages]
+"delegator.py" = "*"

test/fixtures/psycopg2/requirements.txt

@@ -0,0 +1 @@
+psycopg2

test/fixtures/python2/requirements.txt

@@ -0,0 +1 @@
+requests

test/fixtures/python2/runtime.txt

@@ -0,0 +1 @@
+python-2.7.13

test/fixtures/python3/requirements.txt

@@ -0,0 +1 @@
+requests

test/fixtures/python3/runtime.txt

@@ -0,0 +1 @@
+python-3.6.0

test/fixtures/requirements-standard/requirements.txt

@@ -0,0 +1 @@
+requests

test/fixtures/setup-py/README.rst

@@ -0,0 +1,114 @@
+Maya: Datetime for Humans™
+==========================
+
+.. image:: https://img.shields.io/pypi/v/maya.svg
+    :target: https://pypi.python.org/pypi/maya
+
+.. image:: https://travis-ci.org/kennethreitz/maya.svg?branch=master
+    :target: https://travis-ci.org/kennethreitz/maya
+
+.. image:: https://img.shields.io/badge/SayThanks.io-☼-1EAEDB.svg
+    :target: https://saythanks.io/to/kennethreitz
+
+
+Datetimes are very frustrating to work with in Python, especially when dealing
+with different locales on different systems. This library exists to make the
+simple things **much** easier, while admitting that time is an illusion
+(timezones doubly so).
+
+Datetimes should be interacted with via an API written for humans.
+
+Maya is mostly built around the headaches and use-cases around parsing datetime data from websites.
+
+
+☤ Basic Usage of Maya
+---------------------
+
+Behold, datetimes for humans!
+
+.. code-block:: pycon
+
+    >>> now = maya.now()
+    <MayaDT epoch=1481850660.9>
+
+    >>> tomorrow = maya.when('tomorrow')
+    <MayaDT epoch=1481919067.23>
+
+    >>> tomorrow.slang_date()
+    'tomorrow'
+
+    >>> tomorrow.slang_time()
+    '23 hours from now'
+
+    >>> tomorrow.iso8601()
+    '2016-12-16T15:11:30.263350Z'
+
+    >>> tomorrow.rfc2822()
+    'Fri, 16 Dec 2016 20:11:30 -0000'
+
+    >>> tomorrow.datetime()
+    datetime.datetime(2016, 12, 16, 15, 11, 30, 263350, tzinfo=<UTC>)
+
+    # Automatically parse datetime strings and generate naive datetimes.
+    >>> scraped = '2016-12-16 18:23:45.423992+00:00'
+    >>> maya.parse(scraped).datetime(to_timezone='US/Eastern', naive=True)
+    datetime.datetime(2016, 12, 16, 13, 23, 45, 423992)
+
+    >>> rand_day = maya.when('2011-02-07', timezone='US/Eastern')
+    <MayaDT epoch=1297036800.0>
+
+    # Note how this is the 6th, not the 7th.
+    >>> rand_day.day
+    6
+
+    # Always.
+    >>> rand_day.timezone
+    UTC
+
+☤ Why is this useful?
+---------------------
+
+- All timezone algebra will behave identically on all machines, regardless of system locale.
+- Complete symmetric import and export of both ISO 8601 and RFC 2822 datetime stamps.
+- Fantastic parsing of both dates written for/by humans and machines (``maya.when()`` vs ``maya.parse()``).
+- Support for human slang, both import and export (e.g. `an hour ago`).
+- Datetimes can very easily be generated, with or without tzinfo attached.
+- This library is based around epoch time, but dates before Jan 1 1970 are indeed supported, via negative integers.
+- Maya never panics, and always carries a towel.
+
+
+☤ What about Delorean, Arrow, & Pendulum?
+-----------------------------------------
+
+Arrow, for example, is a fantastic library, but isn't what I wanted in a datetime library. In many ways, it's better than Maya for certain things. In some ways, in my opinion, it's not.
+
+I simply desire a sane API for datetimes that made sense to me for all the things I'd ever want to do—especially when dealing with timezone algebra. Arrow doesn't do all of the things I need (but it does a lot more!). Maya does do exactly what I need.
+
+I think these projects complement each-other, personally. Maya is great for parsing websites. For example- Arrow supports floors and ceilings and spans of dates, which Maya does not at all.
+
+
+☤ Installing Maya
+-----------------
+
+Installation is easy, with pip::
+
+    $ pip install maya
+
+✨🍰✨
+
+☤ Like it?
+----------
+
+`Say Thanks <https://saythanks.io/to/kennethreitz>`_!
+
+
+How to Contribute
+-----------------
+
+#. Check for open issues or open a fresh issue to start a discussion around a feature idea or a bug.
+#. Fork `the repository`_ on GitHub to start making your changes to the **master** branch (or branch off of it).
+#. Write a test which shows that the bug was fixed or that the feature works as expected.
+#. Send a pull request and bug the maintainer until it gets merged and published. :) Make sure to add yourself to AUTHORS_.
+
+.. _`the repository`: http://github.com/kennethreitz/maya
+.. _AUTHORS: https://github.com/kennethreitz/maya/blob/master/AUTHORS.rst

test/fixtures/setup-py/maya.py

@@ -0,0 +1,273 @@
+
+# ___  __  ___  _  _  ___
+# || \/ | ||=|| \\// ||=||
+# ||    | || ||  //  || ||
+
+# Ignore warnings for yaml usage.
+import warnings
+import ruamel.yaml
+warnings.simplefilter('ignore', ruamel.yaml.error.UnsafeLoaderWarning)
+
+
+import email.utils
+import time
+from datetime import datetime as Datetime
+
+import pytz
+import humanize
+import dateparser
+import iso8601
+import dateutil.parser
+from tzlocal import get_localzone
+
+_EPOCH_START = (1970, 1, 1)
+
+
+def validate_class_type_arguments(operator):
+    """
+    Decorator to validate all the arguments to function
+    are of the type of calling class
+    """
+
+    def inner(function):
+        def wrapper(self, *args, **kwargs):
+            for arg in args + tuple(kwargs.values()):
+                if not isinstance(arg, self.__class__):
+                    raise TypeError('unorderable types: {}() {} {}()'.format(
+                        type(self).__name__, operator, type(arg).__name__))
+            return function(self, *args, **kwargs)
+
+        return wrapper
+
+    return inner
+
+
+
+class MayaDT(object):
+    """The Maya Datetime object."""
+
+    def __init__(self, epoch):
+        super(MayaDT, self).__init__()
+        self._epoch = epoch
+
+    def __repr__(self):
+        return '<MayaDT epoch={}>'.format(self._epoch)
+
+    def __str__(self):
+        return self.rfc2822()
+
+    def __format__(self, *args, **kwargs):
+        """Return's the datetime's format"""
+        return format(self.datetime(), *args, **kwargs)
+
+
+    @validate_class_type_arguments('==')
+    def __eq__(self, maya_dt):
+        return self._epoch == maya_dt._epoch
+
+    @validate_class_type_arguments('!=')
+    def __ne__(self, maya_dt):
+        return self._epoch != maya_dt._epoch
+
+    @validate_class_type_arguments('<')
+    def __lt__(self, maya_dt):
+        return self._epoch < maya_dt._epoch
+
+    @validate_class_type_arguments('<=')
+    def __le__(self, maya_dt):
+        return self._epoch <= maya_dt._epoch
+
+    @validate_class_type_arguments('>')
+    def __gt__(self, maya_dt):
+        return self._epoch > maya_dt._epoch
+
+    @validate_class_type_arguments('>=')
+    def __ge__(self, maya_dt):
+        return self._epoch >= maya_dt._epoch
+
+
+    # Timezone Crap
+    # -------------
+
+    @property
+    def timezone(self):
+        """Returns the UTC tzinfo name. It's always UTC. Always."""
+        return 'UTC'
+
+    @property
+    def _tz(self):
+        """Returns the UTC tzinfo object."""
+        return pytz.timezone(self.timezone)
+
+    @property
+    def local_timezone(self):
+        """Returns the name of the local timezone, for informational purposes."""
+        return self._local_tz.zone
+
+    @property
+    def _local_tz(self):
+        """Returns the local timezone."""
+        return get_localzone()
+
+    @staticmethod
+    def __dt_to_epoch(dt):
+        """Converts a datetime into an epoch."""
+
+        # Assume UTC if no datetime is provided.
+        if dt.tzinfo is None:
+            dt = dt.replace(tzinfo=pytz.utc)
+
+        epoch_start = Datetime(*_EPOCH_START, tzinfo=pytz.timezone('UTC'))
+        return (dt - epoch_start).total_seconds()
+
+    # Importers
+    # ---------
+
+    @classmethod
+    def from_datetime(klass, dt):
+        """Returns MayaDT instance from datetime."""
+        return klass(klass.__dt_to_epoch(dt))
+
+    @classmethod
+    def from_iso8601(klass, string):
+        """Returns MayaDT instance from iso8601 string."""
+        dt = iso8601.parse_date(string)
+        return klass.from_datetime(dt)
+
+    @staticmethod
+    def from_rfc2822(string):
+        """Returns MayaDT instance from rfc2822 string."""
+        return parse(string)
+
+    # Exporters
+    # ---------
+
+    def datetime(self, to_timezone=None, naive=False):
+        """Returns a timezone-aware datetime...
+        Defaulting to UTC (as it should).
+
+        Keyword Arguments:
+            to_timezone {string} -- timezone to convert to (default: None/UTC)
+            naive {boolean} -- if True, the tzinfo is simply dropped (default: False)
+        """
+        if to_timezone:
+            dt = self.datetime().astimezone(pytz.timezone(to_timezone))
+        else:
+            dt = Datetime.utcfromtimestamp(self._epoch)
+            dt.replace(tzinfo=self._tz)
+
+        # Strip the timezone info if requested to do so.
+        if naive:
+            return dt.replace(tzinfo=None)
+        else:
+            if dt.tzinfo is None:
+                dt = dt.replace(tzinfo=self._tz)
+
+        return dt
+
+    def iso8601(self):
+        """Returns an ISO 8601 representation of the MayaDT."""
+        # Get a timezone-naive datetime.
+        dt = self.datetime(naive=True)
+        return '{}Z'.format(dt.isoformat())
+
+    def rfc2822(self):
+        """Returns an RFC 2822 representation of the MayaDT."""
+        return email.utils.formatdate(self.epoch, usegmt=True)
+
+    # Properties
+    # ----------
+
+    @property
+    def year(self):
+        return self.datetime().year
+
+    @property
+    def month(self):
+        return self.datetime().month
+
+    @property
+    def day(self):
+        return self.datetime().day
+
+    @property
+    def week(self):
+        return self.datetime().isocalendar()[1]
+
+    @property
+    def weekday(self):
+        """Return the day of the week as an integer. Monday is 1 and Sunday is 7"""
+        return self.datetime().isoweekday()
+
+    @property
+    def hour(self):
+        return self.datetime().hour
+
+    @property
+    def minute(self):
+        return self.datetime().minute
+
+    @property
+    def second(self):
+        return self.datetime().second
+
+    @property
+    def microsecond(self):
+        return self.datetime().microsecond
+
+    @property
+    def epoch(self):
+        return self._epoch
+
+    # Human Slang Extras
+    # ------------------
+
+    def slang_date(self):
+        """"Returns human slang representation of date."""
+        dt = self.datetime(naive=True, to_timezone=self.local_timezone)
+        return humanize.naturaldate(dt)
+
+    def slang_time(self):
+        """"Returns human slang representation of time."""
+        dt = self.datetime(naive=True, to_timezone=self.local_timezone)
+        return humanize.naturaltime(dt)
+
+
+
+
+def now():
+    """Returns a MayaDT instance for this exact moment."""
+    epoch = time.time()
+    return MayaDT(epoch=epoch)
+
+def when(string, timezone='UTC'):
+    """"Returns a MayaDT instance for the human moment specified.
+
+    Powered by dateparser. Useful for scraping websites.
+
+    Examples:
+        'next week', 'now', 'tomorrow', '300 years ago', 'August 14, 2015'
+
+    Keyword Arguments:
+        string -- string to be parsed
+        timezone -- timezone referenced from (default: 'UTC')
+
+    """
+    dt = dateparser.parse(string, settings={'TIMEZONE': timezone, 'RETURN_AS_TIMEZONE_AWARE': True, 'TO_TIMEZONE': 'UTC'})
+
+    if dt is None:
+        raise ValueError('invalid datetime input specified.')
+
+    return MayaDT.from_datetime(dt)
+
+def parse(string, day_first=False):
+    """"Returns a MayaDT instance for the machine-produced moment specified.
+
+    Powered by dateutil. Accepts most known formats. Useful for working with data.
+
+    Keyword Arguments:
+        string -- string to be parsed
+        day_first -- if true, the first value (e.g. 01/05/2016) is parsed as day (default: False)
+    """
+    dt = dateutil.parser.parse(string, dayfirst=day_first)
+    return MayaDT.from_datetime(dt)

test/fixtures/setup-py/setup.py

@@ -0,0 +1,51 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import os
+import sys
+import codecs
+
+from setuptools import setup
+
+try:
+    # Python 3
+    from os import dirname
+except ImportError:
+    # Python 2
+    from os.path import dirname
+
+here = os.path.abspath(dirname(__file__))
+
+with codecs.open(os.path.join(here, 'README.rst'), encoding='utf-8') as f:
+    long_description = '\n' + f.read()
+
+
+if sys.argv[-1] == "publish":
+    os.system("python setup.py sdist bdist_wheel upload")
+    sys.exit()
+
+required = [
+    'humanize',
+    'pytz',
+    'dateparser',
+    'iso8601',
+    'python-dateutil',
+    'ruamel.yaml',
+    'tzlocal'
+]
+
+setup(
+    name='maya',
+    version='0.1.6',
+    description='Datetimes for Humans.',
+    long_description=long_description,
+    author='Kenneth Reitz',
+    author_email='me@kennethreitz.com',
+    url='https://github.com/kennethreitz/maya',
+    py_modules=['maya'],
+    install_requires=required,
+    license='MIT',
+    classifiers=(
+
+    ),
+)

test/no-requirements/setup.py

@@ -1,30 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-try:
-    from setuptools import setup
-except ImportError:
-    from distutils.core import setup
-
-required = ['httpbin']
-
-setup(
-    name='haystack',
-    version='0.0.1',
-    description='Simple API for running external processes.',
-    author='Kenneth Reitz',
-    author_email='me@kennethreitz.com',
-    install_requires=required,
-    license='MIT',
-    classifiers=(
-        'Development Status :: 5 - Production/Stable',
-        'Intended Audience :: Developers',
-        'Natural Language :: English',
-        'License :: OSI Approved :: MIT License',
-        'Programming Language :: Python',
-        'Programming Language :: Python :: 2.5',
-        'Programming Language :: Python :: 2.6',
-        'Programming Language :: Python :: 2.7',
-        # 'Programming Language :: Python :: 3.0',
-        # 'Programming Language :: Python :: 3.1',
-    ),
-)

test/not-django/requirements.txt

@@ -1 +0,0 @@
-flask==0.8

test/run

@@ -0,0 +1,118 @@
+#!/usr/bin/env bash
+
+
+testPipenv() {
+  compile "pipenv"
+  assertCapturedSuccess
+}
+
+testPipenvVersion() {
+  compile "pipenv-version"
+  assertCaptured "3.6.0"
+  assertCapturedSuccess
+}
+
+testNoRequirements() {
+  compile "no-requirements"
+  assertCapturedError
+}
+
+
+testNLTK() {
+  compile "nltk"
+  assertCaptured "wordnet"
+  assertCapturedSuccess
+}
+
+
+testSetupPy() {
+  compile "setup-py"
+  assertCaptured "maya"
+  assertCapturedSuccess
+}
+
+
+testStandardRequirements() {
+  compile "requirements-standard"
+  assertCaptured "requests"
+  assertCapturedSuccess
+}
+
+testPsycopg2() {
+  compile "psycopg2"
+  assertCaptured "psycopg2"
+  assertCapturedSuccess
+}
+
+testPython2() {
+  compile "python2"
+  assertCaptured "python-2.7.13"
+  assertCapturedSuccess
+}
+
+testPython3() {
+  compile "python3"
+  assertCaptured "python-3.6.0"
+  assertCapturedSuccess
+}
+
+
+
+
+pushd $(dirname 0) >/dev/null
+popd >/dev/null
+
+source $(pwd)/test/utils
+
+mktmpdir() {
+  dir=$(mktemp -t testXXXXX)
+  rm -rf $dir
+  mkdir $dir
+  echo $dir
+}
+
+detect() {
+  capture $(pwd)/bin/detect $(pwd)/test/fixtures/$1
+}
+
+compile_dir=""
+
+default_process_types_cleanup() {
+  file="/tmp/default_process_types"
+  if [ -f "$file" ]; then
+    rm "$file"
+  fi
+}
+
+compile() {
+  default_process_types_cleanup
+  bp_dir=$(mktmpdir)
+  compile_dir=$(mktmpdir)
+  cp -a $(pwd)/* ${bp_dir}
+  cp -a ${bp_dir}/test/fixtures/$1/. ${compile_dir}
+  capture ${bp_dir}/bin/compile ${compile_dir} ${2:-$(mktmpdir)} $3
+}
+
+compileDir() {
+  default_process_types_cleanup
+
+  local bp_dir=$(mktmpdir)
+  local compile_dir=${1:-$(mktmpdir)}
+  local cache_dir=${2:-$(mktmpdir)}
+  local env_dir=$3
+
+  cp -a $(pwd)/* ${bp_dir}
+  capture ${bp_dir}/bin/compile ${compile_dir} ${cache_dir} ${env_dir}
+}
+
+release() {
+  bp_dir=$(mktmpdir)
+  cp -a $(pwd)/* ${bp_dir}
+  capture ${bp_dir}/bin/release ${bp_dir}/test/fixtures/$1
+}
+
+assertFile() {
+  assertEquals "$1" "$(cat ${compile_dir}/$2)"
+}
+
+source $(pwd)/test/shunit2

test/simple-requirements/requirements.txt

@@ -1 +0,0 @@
-httpbin

test/utils

@@ -0,0 +1,203 @@
+#!/bin/sh
+
+# taken from
+# https://github.com/ryanbrainard/heroku-buildpack-testrunner/blob/master/lib/test_utils.sh
+
+oneTimeSetUp()
+{
+   TEST_SUITE_CACHE="$(mktemp -d ${SHUNIT_TMPDIR}/test_suite_cache.XXXX)"
+}
+
+oneTimeTearDown()
+{
+  rm -rf ${TEST_SUITE_CACHE}
+}
+
+setUp()
+{
+  OUTPUT_DIR="$(mktemp -d ${SHUNIT_TMPDIR}/output.XXXX)"
+  STD_OUT="${OUTPUT_DIR}/stdout"
+  STD_ERR="${OUTPUT_DIR}/stderr"
+  BUILD_DIR="${OUTPUT_DIR}/build"
+  CACHE_DIR="${OUTPUT_DIR}/cache"
+  mkdir -p ${OUTPUT_DIR}
+  mkdir -p ${BUILD_DIR}
+  mkdir -p ${CACHE_DIR}
+}
+
+tearDown()
+{
+  rm -rf ${OUTPUT_DIR}
+}
+
+capture()
+{
+  resetCapture
+
+  LAST_COMMAND="$@"
+
+  $@ >${STD_OUT} 2>${STD_ERR}
+  RETURN=$?
+  rtrn=${RETURN} # deprecated
+}
+
+resetCapture()
+{
+  if [ -f ${STD_OUT} ]; then
+    rm ${STD_OUT}
+  fi
+
+  if [ -f ${STD_ERR} ]; then
+    rm ${STD_ERR}
+  fi
+
+  unset LAST_COMMAND
+  unset RETURN
+  unset rtrn # deprecated
+}
+
+detect()
+{
+  capture ${BUILDPACK_HOME}/bin/detect ${BUILD_DIR}
+}
+
+compile()
+{
+  capture ${BUILDPACK_HOME}/bin/compile ${BUILD_DIR} ${CACHE_DIR}
+}
+
+release()
+{
+  capture ${BUILDPACK_HOME}/bin/release ${BUILD_DIR}
+}
+
+assertCapturedEquals()
+{
+  assertEquals "$@" "$(cat ${STD_OUT})"
+}
+
+assertCapturedNotEquals()
+{
+  assertNotEquals "$@" "$(cat ${STD_OUT})"
+}
+
+assertCaptured()
+{
+  assertFileContains "$@" "${STD_OUT}"
+}
+
+assertNotCaptured()
+{
+  assertFileNotContains "$@" "${STD_OUT}"
+}
+
+assertCapturedSuccess()
+{
+  assertEquals "Captured exit code -" "0" "${RETURN}"
+  assertEquals "STD_ERR -" "" "$(cat ${STD_ERR})"
+
+  if [ $RETURN -ne 0 -a -z "$(cat ${STD_ERR})" ]; then
+    # Failing exit code but stderr was empty. Display stdout to help debugging.
+    cat $STD_OUT
+    echo
+  fi
+}
+
+# assertCapturedError [[expectedErrorCode] expectedErrorMsg]
+assertCapturedError()
+{
+  if [ $# -gt 1 ]; then
+    local expectedErrorCode=${1}
+    shift
+  fi
+
+  local expectedErrorMsg=${1:-""}
+
+  if [ -z ${expectedErrorCode} ]; then
+    assertTrue "Expected captured exit code to be greater than 0; was <${RETURN}>" "[ ${RETURN} -gt 0 ]"
+  else
+    assertTrue "Expected captured exit code to be <${expectedErrorCode}>; was <${RETURN}>" "[ ${RETURN} -eq ${expectedErrorCode} ]"
+  fi
+
+  if [ "${expectedErrorMsg}" != "" ]; then
+    assertFileContains "Expected STD_ERR to contain error <${expectedErrorMsg}>" "${expectedErrorMsg}" "${STD_ERR}"
+  fi
+}
+
+_assertContains()
+{
+  if [ 5 -eq $# ]; then
+    local msg=$1
+    shift
+  elif [ ! 4 -eq $# ]; then
+    fail "Expected 4 or 5 parameters; Receieved $# parameters"
+  fi
+
+  local needle=$1
+  local haystack=$2
+  local expectation=$3
+  local haystack_type=$4
+
+  case "${haystack_type}" in
+    "file") grep -q -F -e "${needle}" ${haystack} ;;
+    "text") echo "${haystack}" | grep -q -F -e "${needle}" ;;
+  esac
+
+  if [ "${expectation}" != "$?" ]; then
+    case "${expectation}" in
+      0) default_msg="Expected <${haystack}> to contain <${needle}>" ;;
+      1) default_msg="Did not expect <${haystack}> to contain <${needle}>" ;;
+    esac
+
+    fail "${msg:-${default_msg}}"
+  fi
+}
+
+debug()
+{
+  cat $STD_OUT
+  echo '^^^^^^'
+  cat $STD_ERR
+}
+
+assertContains()
+{
+  _assertContains "$@" 0 "text"
+}
+
+assertNotContains()
+{
+  _assertContains "$@" 1 "text"
+}
+
+assertFileContains()
+{
+  _assertContains "$@" 0 "file"
+}
+
+assertFileNotContains()
+{
+  _assertContains "$@" 1 "file"
+}
+
+command_exists () {
+    type "$1" > /dev/null 2>&1 ;
+}
+
+assertFileMD5()
+{
+  expectedHash=$1
+  filename=$2
+
+  if command_exists "md5sum"; then
+    md5_cmd="md5sum ${filename}"
+    expected_md5_cmd_output="${expectedHash}  ${filename}"
+  elif command_exists "md5"; then
+    md5_cmd="md5 ${filename}"
+    expected_md5_cmd_output="MD5 (${filename}) = ${expectedHash}"
+  else
+    fail "no suitable MD5 hashing command found on this system"
+  fi
+
+  assertEquals "${expected_md5_cmd_output}" "`${md5_cmd}`"
+}

tests.sh

@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+
+if [[ ! "$STACK" ]]; then
+    echo '$STACK must be set! (heroku-16 | cedar-14)'
+    exit 1
+fi
+
+if [[ "$STACK" == "cedar-14" ]]; then
+    make test-cedar-14
+    exit $?
+fi
+
+if [[ "$STACK" == "heroku-16" ]]; then
+    make test-heroku-16
+    exit $?
+fi