diff --git a/pipenv/__version__.py b/pipenv/__version__.py
index 49384b59..5341ea56 100644
--- a/pipenv/__version__.py
+++ b/pipenv/__version__.py
@@ -1 +1 @@
-__version__ = '3.1.9'
\ No newline at end of file
+__version__ = '3.1.9'
diff --git a/pipenv/_pipfile/__about__.py b/pipenv/_pipfile/__about__.py
index 35b15962..8c5b16e9 100644
--- a/pipenv/_pipfile/__about__.py
+++ b/pipenv/_pipfile/__about__.py
@@ -18,4 +18,4 @@ __author__ = "Kenneth Reitz and individual contributors"
 __email__ = "me@kennethreitz.org"
 
 __license__ = "BSD or Apache License, Version 2.0"
-__copyright__ = "Copyright 2017 %s" % __author__
\ No newline at end of file
+__copyright__ = "Copyright 2017 %s" % __author__
diff --git a/pipenv/_pipfile/__init__.py b/pipenv/_pipfile/__init__.py
index 4c5b12a7..fddd4f90 100644
--- a/pipenv/_pipfile/__init__.py
+++ b/pipenv/_pipfile/__init__.py
@@ -8,4 +8,4 @@ from .__about__ import (
     __uri__, __version__
 )
 
-from .api import load, Pipfile
\ No newline at end of file
+from .api import load, Pipfile
diff --git a/pipenv/_pipfile/api.py b/pipenv/_pipfile/api.py
index 04cb4590..107c6d04 100644
--- a/pipenv/_pipfile/api.py
+++ b/pipenv/_pipfile/api.py
@@ -48,7 +48,6 @@ def walk_up(bottom):
         yield x
 
 
-
 class PipfileParser(object):
     def __init__(self, filename='Pipfile'):
         self.filename = filename
@@ -191,4 +190,4 @@ def load(pipfile_path=None):
     if pipfile_path is None:
         pipfile_path = Pipfile.find()
 
-    return Pipfile.load(filename=pipfile_path)
\ No newline at end of file
+    return Pipfile.load(filename=pipfile_path)
diff --git a/pipenv/cli.py b/pipenv/cli.py
index 7ca00f01..45cf9292 100644
--- a/pipenv/cli.py
+++ b/pipenv/cli.py
@@ -7,18 +7,6 @@ import distutils.spawn
 import shutil
 import signal
 
-try:
-    from HTMLParser import HTMLParser
-except ImportError:
-    from html.parser import HTMLParser
-
-# Backport required for earlier versions of Python.
-if sys.version_info < (3, 3):
-    from backports.shutil_get_terminal_size import get_terminal_size
-
-else:
-    from shutil import get_terminal_size
-
 import click
 import crayons
 import delegator
@@ -32,9 +20,22 @@ from .utils import convert_deps_from_pip, convert_deps_to_pip
 from .__version__ import __version__
 from . import pep508checker
 
+try:
+    from HTMLParser import HTMLParser
+except ImportError:
+    from html.parser import HTMLParser
+
+# Backport required for earlier versions of Python.
+if sys.version_info < (3, 3):
+    from backports.shutil_get_terminal_size import get_terminal_size
+
+else:
+    from shutil import get_terminal_size
+
 
 project = Project()
 
+
 def ensure_latest_pip():
     """Updates pip to the latest version."""
 
@@ -48,6 +49,7 @@ def ensure_latest_pip():
         c = delegator.run('{0} install pip --upgrade'.format(which_pip()), block=False)
         click.echo(crayons.blue(c.out))
 
+
 def ensure_pipfile():
     """Creates a Pipfile for the project, if it doesn't exist."""
 
@@ -59,6 +61,7 @@ def ensure_pipfile():
         # Create the pipfile if it doesn't exist.
         project.create_pipfile()
 
+
 def ensure_virtualenv(three=None):
     """Creates a virtualenv, if one doesn't exist."""
 
@@ -141,7 +144,6 @@ def do_install_dependencies(dev=False, only=False, bare=False, requirements=Fals
             click.echo(f.read())
             sys.exit(0)
 
-
     # pip install:
     c = pip_install(r=deps_path, allow_global=allow_global)
     if not c.return_code == 0:
@@ -206,6 +208,7 @@ def do_create_virtualenv(three=None):
     # Say where the virtualenv is.
     do_where(virtualenv=True, bare=False)
 
+
 def parse_download_fname(fname):
 
     # Use Parse to attempt to parse filenames for metadata.
@@ -227,6 +230,7 @@ def parse_download_fname(fname):
 
     return name, version
 
+
 def get_downloads_info():
     info = []
 
@@ -243,6 +247,7 @@ def get_downloads_info():
 
     return info
 
+
 def do_lock():
     """Executes the freeze functionality."""
 
@@ -266,7 +271,6 @@ def do_lock():
         if dep:
             lockfile['develop'].update({dep['name']: {'hash': dep['hash'], 'version': '=={0}'.format(dep['version'])}})
 
-
     # Purge the virtualenv download dir, for default dependencies.
     do_purge(downloads=True, bare=True)
 
@@ -314,9 +318,11 @@ def activate_virtualenv(source=True):
 def do_activate_virtualenv(bare=False):
     """Executes the activate virtualenv functionality."""
     # Check for environment marker, and skip if it's set.
-    if not 'PIPENV_ACTIVE' in os.environ:
+    if 'PIPENV_ACTIVE' not in os.environ:
         if not bare:
-            click.echo('To activate this project\'s virtualenv, run the following:\n $ {0}'.format(crayons.red('pipenv shell')))
+            click.echo('To activate this project\'s virtualenv, run the following:\n $ {0}'.format(
+                crayons.red('pipenv shell'))
+            )
         else:
             click.echo(activate_virtualenv())
 
@@ -381,6 +387,7 @@ def do_init(dev=False, requirements=False, skip_virtualenv=False, allow_global=F
     # Activate virtualenv instructions.
     do_activate_virtualenv()
 
+
 def pip_install(package_name=None, r=None, allow_global=False):
     if r:
         c = delegator.run('{0} install -r {1} --require-hashes -i {2}'.format(which_pip(allow_global=allow_global), r, project.source['url']))
@@ -388,10 +395,12 @@ def pip_install(package_name=None, r=None, allow_global=False):
         c = delegator.run('{0} install "{1}" -i {2}'.format(which_pip(allow_global=allow_global), package_name, project.source['url']))
     return c
 
+
 def pip_download(package_name):
     c = delegator.run('{0} download "{1}" -d {2}'.format(which_pip(), package_name, project.download_location))
     return c
 
+
 def which(command):
     return os.sep.join([project.virtualenv_location] + ['bin/{0}'.format(command)])
 
@@ -403,6 +412,7 @@ def which_pip(allow_global=False):
 
     return which('pip')
 
+
 def proper_case(package_name):
 
     # Capture tag contents here.
@@ -423,6 +433,7 @@ def proper_case(package_name):
     # Use the last link on the page, use it to get proper casing.
     return parse_download_fname(collected[-1])[0]
 
+
 def format_help(help):
     """Formats the help string."""
     help = help.replace('  check', str(crayons.green('  check')))
@@ -451,9 +462,9 @@ Commands:""".format(
 
     help = help.replace('Commands:', additional_help)
 
-
     return help
 
+
 def format_pip_error(error):
     error = error.replace('Expected', str(crayons.green('Expected', bold=True)))
     error = error.replace('Got', str(crayons.red('Got', bold=True)))
@@ -461,6 +472,7 @@ def format_pip_error(error):
     error = error.replace('someone may have tampered with them', str(crayons.red('someone may have tampered with them')))
     return error
 
+
 def format_pip_output(out, r=None):
     def gen(out):
         for line in out.split('\n'):
@@ -473,10 +485,12 @@ def format_pip_output(out, r=None):
     out = '\n'.join([l for l in gen(out)])
     return out
 
+
 def easter_egg(package_name):
     if package_name in ['requests', 'maya', 'crayons', 'delegator.py' 'records', 'tablib']:
         click.echo('P.S. You have excellent taste! ✨🍰✨')
 
+
 @click.group(invoke_without_command=True)
 @click.option('--where', is_flag=True, default=False, help="Output project home information.")
 @click.option('--bare', is_flag=True, default=False, help="Minimal output.")
@@ -501,11 +515,10 @@ def cli(ctx, where=False, bare=False, three=False, help=False):
             click.echo(format_help(ctx.get_help()))
 
 
-
 @click.command(help="Installs provided packages and adds them to Pipfile, or (if none is given), installs all packages.")
 @click.argument('package_name', default=False)
 @click.argument('more_packages', nargs=-1)
-@click.option('--dev','-d', is_flag=True, default=False, help="Install package(s) in [dev-packages].")
+@click.option('--dev', '-d', is_flag=True, default=False, help="Install package(s) in [dev-packages].")
 @click.option('--three/--two', is_flag=True, default=None, help="Use Python 3/2 when creating virtualenv.")
 @click.option('--system', is_flag=True, default=False, help="System pip management.")
 @click.option('--requirements', is_flag=True, default=False, help="Just generate a requirements.txt. Only works with bare install command.")
@@ -700,7 +713,7 @@ def check():
 
 
 @click.command(help="Updates pip to latest version, uninstalls all packages, and re-installs them to latest compatible versions.")
-@click.option('--dev','-d', is_flag=True, default=False, help="Install package(s) in [dev-packages].")
+@click.option('--dev', '-d', is_flag=True, default=False, help="Install package(s) in [dev-packages].")
 @click.option('--three/--two', is_flag=True, default=None, help="Use Python 3/2 when creating virtualenv.")
 def update(dev=False, three=None):
 
diff --git a/pipenv/pep508checker.py b/pipenv/pep508checker.py
index ee93cdab..c88ea2ce 100644
--- a/pipenv/pep508checker.py
+++ b/pipenv/pep508checker.py
@@ -3,6 +3,7 @@ import os
 import platform
 import json
 
+
 def format_full_version(info):
     version = '{0.major}.{0.minor}.{0.micro}'.format(info)
     kind = info.releaselevel
diff --git a/pipenv/project.py b/pipenv/project.py
index bd7c54f1..747dd90c 100644
--- a/pipenv/project.py
+++ b/pipenv/project.py
@@ -6,6 +6,7 @@ from . import _pipfile as pipfile
 from .utils import format_toml, multi_split
 from .utils import convert_deps_from_pip, convert_deps_to_pip
 
+
 def mkdir_p(newdir):
     """works the way a good mkdir should :)
         - already exists, silently complete
@@ -16,13 +17,11 @@ def mkdir_p(newdir):
     if os.path.isdir(newdir):
         pass
     elif os.path.isfile(newdir):
-        raise OSError("a file with the same name as the desired " \
-                      "dir, '%s', already exists." % newdir)
+        raise OSError("a file with the same name as the desired dir, '%s', already exists." % newdir)
     else:
         head, tail = os.path.split(newdir)
         if head and not os.path.isdir(head):
             _mkdir(head)
-        #print "_mkdir %s" % repr(newdir)
         if tail:
             os.mkdir(newdir)
 
@@ -57,7 +56,6 @@ class Project(object):
 
         return d_dir
 
-
     @property
     def pipfile_location(self):
         try:
@@ -108,7 +106,6 @@ class Project(object):
         with open(pipfile_path, 'w') as f:
             f.write(data)
 
-
     def add_package_to_pipfile(self, package_name, dev=False):
         # Lower-case package name.
         package_name = package_name
diff --git a/pipenv/utils.py b/pipenv/utils.py
index c663d896..657d8247 100644
--- a/pipenv/utils.py
+++ b/pipenv/utils.py
@@ -15,7 +15,6 @@ def format_toml(data):
     return '\n'.join(data)
 
 
-
 def multi_split(s, split):
     """Splits on multiple given separators."""
     for r in split:
diff --git a/test_pipenv.py b/test_pipenv.py
index 4fe9b6ff..60dab302 100644
--- a/test_pipenv.py
+++ b/test_pipenv.py
@@ -3,7 +3,6 @@ import pytest
 import pipenv.utils
 
 
-
 def test_convert_deps_to_pip():
 
     # requests = '*'
@@ -36,6 +35,7 @@ def test_convert_deps_to_pip():
     deps = pipenv.utils.convert_deps_to_pip(deps, r=False)
     assert deps[0] == 'git+git://github.com/pinax/pinax.git@1.4#egg=pinax'
 
+
 def test_convert_from_pip():
 
     # requests
@@ -56,4 +56,3 @@ def test_convert_from_pip():
     dep = '-e svn+svn://svn.myproject.org/svn/MyProject#egg=MyProject'
     dep = pipenv.utils.convert_deps_from_pip(dep)
     assert dep == {u'MyProject': {u'svn': u'svn://svn.myproject.org/svn/MyProject', 'editable': True}}
-