diff --git a/docs/conf.py b/docs/conf.py
index f3d0b6e2..c5d6fbe0 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -18,6 +18,7 @@
 #
 import os
 
+
 # Path hackery to get current version number.
 here = os.path.abspath(os.path.dirname(__file__))
 
diff --git a/pipenv/__init__.py b/pipenv/__init__.py
index 4d137e7f..7a12158a 100644
--- a/pipenv/__init__.py
+++ b/pipenv/__init__.py
@@ -10,6 +10,7 @@ import warnings
 
 from .__version__ import __version__
 
+
 PIPENV_ROOT = os.path.abspath(os.path.dirname(os.path.realpath(__file__)))
 PIPENV_VENDOR = os.sep.join([PIPENV_ROOT, "vendor"])
 PIPENV_PATCHED = os.sep.join([PIPENV_ROOT, "patched"])
@@ -20,6 +21,7 @@ sys.path.insert(0, PIPENV_PATCHED)
 
 from pipenv.vendor.urllib3.exceptions import DependencyWarning
 from pipenv.vendor.vistir.compat import ResourceWarning, fs_str
+
 warnings.filterwarnings("ignore", category=DependencyWarning)
 warnings.filterwarnings("ignore", category=ResourceWarning)
 warnings.filterwarnings("ignore", category=UserWarning)
diff --git a/pipenv/__main__.py b/pipenv/__main__.py
index 98dcca0c..491a4d13 100644
--- a/pipenv/__main__.py
+++ b/pipenv/__main__.py
@@ -1,4 +1,5 @@
 from .cli import cli
 
+
 if __name__ == "__main__":
     cli()
diff --git a/pipenv/_compat.py b/pipenv/_compat.py
index c126cc84..ca3bbd0f 100644
--- a/pipenv/_compat.py
+++ b/pipenv/_compat.py
@@ -9,11 +9,16 @@ import functools
 import importlib
 import io
 import os
-import six
 import sys
 import warnings
+
+import six
 import vistir
-from .vendor.vistir.compat import NamedTemporaryFile, Path, ResourceWarning, TemporaryDirectory
+
+from .vendor.vistir.compat import (
+    NamedTemporaryFile, Path, ResourceWarning, TemporaryDirectory
+)
+
 
 # Backport required for earlier versions of Python.
 if sys.version_info < (3, 3):
diff --git a/pipenv/cli/__init__.py b/pipenv/cli/__init__.py
index 605f4c10..d1819953 100644
--- a/pipenv/cli/__init__.py
+++ b/pipenv/cli/__init__.py
@@ -1,3 +1,4 @@
 # -*- coding=utf-8 -*-
 from __future__ import absolute_import
+
 from .command import cli
diff --git a/pipenv/cli/command.py b/pipenv/cli/command.py
index 70d1af0f..35d69158 100644
--- a/pipenv/cli/command.py
+++ b/pipenv/cli/command.py
@@ -4,23 +4,23 @@ from __future__ import absolute_import
 import os
 import sys
 
-import crayons
-import delegator
-
 from click import (
     argument, echo, edit, group, option, pass_context, secho, version_option
 )
 
 import click_completion
+import crayons
+import delegator
 
 from click_didyoumean import DYMCommandCollection
 
 from ..__version__ import __version__
 from .options import (
     CONTEXT_SETTINGS, PipenvGroup, code_option, common_options, deploy_option,
-    general_options, install_options, lock_options, pass_state, skip_lock_option,
-    pypi_mirror_option, python_option, requirementstxt_option, sync_options,
-    system_option, three_option, verbose_option, uninstall_options
+    general_options, install_options, lock_options, pass_state,
+    pypi_mirror_option, python_option, requirementstxt_option,
+    skip_lock_option, sync_options, system_option, three_option,
+    uninstall_options, verbose_option
 )
 
 
diff --git a/pipenv/cli/options.py b/pipenv/cli/options.py
index caa67e38..745275dd 100644
--- a/pipenv/cli/options.py
+++ b/pipenv/cli/options.py
@@ -4,6 +4,7 @@ from __future__ import absolute_import
 import os
 
 import click.types
+
 from click import (
     BadParameter, Group, Option, argument, echo, make_pass_decorator, option
 )
diff --git a/pipenv/core.py b/pipenv/core.py
index 121adb57..f26a2edc 100644
--- a/pipenv/core.py
+++ b/pipenv/core.py
@@ -1,62 +1,42 @@
 # -*- coding=utf-8 -*-
 
+import json as simplejson
 import logging
 import os
-import sys
 import shutil
+import sys
 import time
-import json as simplejson
+import warnings
+
 import click
+import six
+import urllib3.util as urllib3_util
+import vistir
+
 import click_completion
 import crayons
-import dotenv
 import delegator
+import dotenv
 import pipfile
-import vistir
-import warnings
-import six
-
-import urllib3.util as urllib3_util
 
+from . import environments, exceptions, pep508checker, progress
+from ._compat import fix_utf8
 from .cmdparse import Script
+from .environments import (
+    PIPENV_CACHE_DIR, PIPENV_COLORBLIND, PIPENV_DEFAULT_PYTHON_VERSION,
+    PIPENV_DONT_USE_PYENV, PIPENV_HIDE_EMOJIS, PIPENV_MAX_SUBPROCESS,
+    PIPENV_PYUP_API_KEY, PIPENV_SHELL_FANCY, PIPENV_SKIP_VALIDATION,
+    PIPENV_YES, SESSION_IS_INTERACTIVE
+)
 from .project import Project, SourceNotFound
 from .utils import (
-    convert_deps_to_pip,
-    is_required_version,
-    proper_case,
-    pep423_name,
-    venv_resolve_deps,
-    escape_grouped_arguments,
-    python_version,
-    find_windows_executable,
-    prepare_pip_source_args,
-    is_valid_url,
-    is_pypi_url,
-    create_mirror_source,
-    download_file,
-    is_pinned,
-    is_star,
-    parse_indexes,
-    escape_cmd,
-    create_spinner,
-    get_canonical_names
+    convert_deps_to_pip, create_mirror_source, create_spinner, download_file,
+    escape_cmd, escape_grouped_arguments, find_windows_executable,
+    get_canonical_names, is_pinned, is_pypi_url, is_required_version, is_star,
+    is_valid_url, parse_indexes, pep423_name, prepare_pip_source_args,
+    proper_case, python_version, venv_resolve_deps
 )
-from . import environments, pep508checker, progress
-from .environments import (
-    PIPENV_COLORBLIND,
-    PIPENV_SHELL_FANCY,
-    PIPENV_SKIP_VALIDATION,
-    PIPENV_HIDE_EMOJIS,
-    PIPENV_YES,
-    PIPENV_DEFAULT_PYTHON_VERSION,
-    PIPENV_MAX_SUBPROCESS,
-    PIPENV_DONT_USE_PYENV,
-    SESSION_IS_INTERACTIVE,
-    PIPENV_CACHE_DIR,
-    PIPENV_PYUP_API_KEY,
-)
-from ._compat import fix_utf8
-from . import exceptions
+
 
 # Packages that should be ignored later.
 BAD_PACKAGES = (
diff --git a/pipenv/environment.py b/pipenv/environment.py
index 7558f94c..06757938 100644
--- a/pipenv/environment.py
+++ b/pipenv/environment.py
@@ -3,23 +3,25 @@
 import contextlib
 import importlib
 import json
-import os
-import sys
 import operator
-import pkg_resources
+import os
 import site
-import six
+import sys
 
 from distutils.sysconfig import get_python_lib
 from sysconfig import get_paths
 
-from cached_property import cached_property
-
+import pkg_resources
+import six
 import vistir
+
 import pipenv
 
+from cached_property import cached_property
+
 from .utils import normalize_path
 
+
 BASE_WORKING_SET = pkg_resources.WorkingSet(sys.path)
 
 
diff --git a/pipenv/environments.py b/pipenv/environments.py
index a4972bbb..445e3b63 100644
--- a/pipenv/environments.py
+++ b/pipenv/environments.py
@@ -2,9 +2,11 @@
 
 import os
 import sys
+
 from appdirs import user_cache_dir
-from .vendor.vistir.misc import fs_str
+
 from ._compat import fix_utf8
+from .vendor.vistir.misc import fs_str
 
 
 # HACK: avoid resolver.py uses the wrong byte code files.
diff --git a/pipenv/exceptions.py b/pipenv/exceptions.py
index 900f2d5e..0da42fe7 100644
--- a/pipenv/exceptions.py
+++ b/pipenv/exceptions.py
@@ -3,27 +3,21 @@
 import itertools
 import sys
 
-from traceback import format_exception
 from pprint import pformat
+from traceback import format_exception
 
 import six
 
+from . import environments
 from ._compat import fix_utf8
 from .patched import crayons
-from . import environments
-from .vendor.click.utils import echo as click_echo
 from .vendor.click._compat import get_text_stderr
 from .vendor.click.exceptions import (
-    Abort,
-    BadOptionUsage,
-    BadParameter,
-    ClickException,
-    Exit,
-    FileError,
-    MissingParameter,
-    UsageError,
+    Abort, BadOptionUsage, BadParameter, ClickException, Exit, FileError,
+    MissingParameter, UsageError
 )
 from .vendor.click.types import Path
+from .vendor.click.utils import echo as click_echo
 
 
 def handle_exception(exc_type, exception, traceback, hook=sys.excepthook):
diff --git a/pipenv/pep508checker.py b/pipenv/pep508checker.py
index 724be7cc..e875a6d1 100644
--- a/pipenv/pep508checker.py
+++ b/pipenv/pep508checker.py
@@ -1,8 +1,8 @@
 # -*- coding: utf-8 -*-
-import sys
+import json
 import os
 import platform
-import json
+import sys
 
 
 def format_full_version(info):
diff --git a/pipenv/progress.py b/pipenv/progress.py
index c126fe73..1328e4d5 100644
--- a/pipenv/progress.py
+++ b/pipenv/progress.py
@@ -12,9 +12,12 @@ from __future__ import absolute_import
 import os
 import sys
 import time
+
 import crayons
+
 from .environments import PIPENV_COLORBLIND, PIPENV_HIDE_EMOJIS
 
+
 STREAM = sys.stderr
 MILL_TEMPLATE = "%s %s %i/%i\r"
 DOTS_CHAR = "."
diff --git a/pipenv/project.py b/pipenv/project.py
index ef34eeb8..46f82cf3 100644
--- a/pipenv/project.py
+++ b/pipenv/project.py
@@ -1,54 +1,41 @@
 # -*- coding: utf-8 -*-
+import base64
+import fnmatch
+import glob
+import hashlib
 import io
 import json
+import operator
 import os
 import re
 import sys
-import glob
-import base64
-import fnmatch
-import hashlib
-from first import first
-from cached_property import cached_property
-import operator
-import pipfile
-import pipfile.api
+
 import six
-import vistir
 import toml
 import tomlkit
+import vistir
+
+from first import first
+
+import pipfile
+import pipfile.api
+
+from cached_property import cached_property
 
-from .environment import Environment
 from .cmdparse import Script
-from .utils import (
-    pep423_name,
-    proper_case,
-    find_requirements,
-    is_editable,
-    cleanup_toml,
-    convert_toml_outline_tables,
-    is_installable_file,
-    is_valid_url,
-    get_url_name,
-    normalize_drive,
-    python_version,
-    safe_expandvars,
-    is_star,
-    get_workon_home,
-    is_virtual_environment,
-    looks_like_dir,
-    get_canonical_names
-)
+from .environment import Environment
 from .environments import (
-    PIPENV_MAX_DEPTH,
-    PIPENV_PIPFILE,
-    PIPENV_VENV_IN_PROJECT,
-    PIPENV_TEST_INDEX,
-    PIPENV_PYTHON,
-    PIPENV_DEFAULT_PYTHON_VERSION,
-    PIPENV_IGNORE_VIRTUALENVS,
+    PIPENV_DEFAULT_PYTHON_VERSION, PIPENV_IGNORE_VIRTUALENVS, PIPENV_MAX_DEPTH,
+    PIPENV_PIPFILE, PIPENV_PYTHON, PIPENV_TEST_INDEX, PIPENV_VENV_IN_PROJECT,
     is_in_virtualenv
 )
+from .utils import (
+    cleanup_toml, convert_toml_outline_tables, find_requirements,
+    get_canonical_names, get_url_name, get_workon_home, is_editable,
+    is_installable_file, is_star, is_valid_url, is_virtual_environment,
+    looks_like_dir, normalize_drive, pep423_name, proper_case, python_version,
+    safe_expandvars
+)
 
 
 def _normalized(p):
diff --git a/pipenv/pyenv.py b/pipenv/pyenv.py
index bbfd1a97..941e5991 100644
--- a/pipenv/pyenv.py
+++ b/pipenv/pyenv.py
@@ -1,9 +1,8 @@
 import operator
 import re
 
-from .vendor import attr, delegator
-
 from .environments import PIPENV_INSTALL_TIMEOUT
+from .vendor import attr, delegator
 
 
 @attr.s
diff --git a/pipenv/resolver.py b/pipenv/resolver.py
index e87f3243..ed474fb4 100644
--- a/pipenv/resolver.py
+++ b/pipenv/resolver.py
@@ -1,7 +1,8 @@
-import os
-import sys
 import json
 import logging
+import os
+import sys
+
 
 os.environ["PIP_PYTHON_PATH"] = str(sys.executable)
 
diff --git a/pipenv/shells.py b/pipenv/shells.py
index 352c01f4..1d8b073a 100644
--- a/pipenv/shells.py
+++ b/pipenv/shells.py
@@ -5,10 +5,10 @@ import signal
 import subprocess
 import sys
 
-from .environments import PIPENV_SHELL_EXPLICIT, PIPENV_SHELL, PIPENV_EMULATOR
-from .vendor.vistir.compat import get_terminal_size, Path
-from .vendor.vistir.contextmanagers import temp_environ
+from .environments import PIPENV_EMULATOR, PIPENV_SHELL, PIPENV_SHELL_EXPLICIT
 from .vendor import shellingham
+from .vendor.vistir.compat import Path, get_terminal_size
+from .vendor.vistir.contextmanagers import temp_environ
 
 
 ShellDetectionFailure = shellingham.ShellDetectionFailure
diff --git a/pipenv/utils.py b/pipenv/utils.py
index 2dd56152..9f03465c 100644
--- a/pipenv/utils.py
+++ b/pipenv/utils.py
@@ -7,36 +7,34 @@ import re
 import shutil
 import stat
 import sys
-import toml
-import tomlkit
 import warnings
 
-import crayons
-import parse
+from contextlib import contextmanager
+from distutils.spawn import find_executable
+
 import six
+import toml
+import tomlkit
 
 from click import echo as click_echo
 from first import first
-from vistir.misc import fs_str
-
 six.add_move(six.MovedAttribute("Mapping", "collections", "collections.abc"))  # noqa
 six.add_move(six.MovedAttribute("Sequence", "collections", "collections.abc"))  # noqa
 six.add_move(six.MovedAttribute("Set", "collections", "collections.abc"))  # noqa
 from six.moves import Mapping, Sequence, Set
-
+from six.moves.urllib.parse import urlparse
+from urllib3 import util as urllib3_util
 from vistir.compat import ResourceWarning
+from vistir.misc import fs_str
 
+import crayons
+import parse
 
-logging.basicConfig(level=logging.ERROR)
-
-from distutils.spawn import find_executable
-from contextlib import contextmanager
 from . import environments
 from .pep508checker import lookup
 
-from six.moves.urllib.parse import urlparse
-from urllib3 import util as urllib3_util
 
+logging.basicConfig(level=logging.ERROR)
 
 specifiers = [k for k in lookup.keys()]
 # List of version control systems we support.
diff --git a/tasks/__init__.py b/tasks/__init__.py
index 04581bb3..63fe1388 100644
--- a/tasks/__init__.py
+++ b/tasks/__init__.py
@@ -1,14 +1,16 @@
 # -*- coding=utf-8 -*-
-# Copyied from pip's vendoring process
+# Copied from pip's vendoring process
 # see https://github.com/pypa/pip/blob/95bcf8c5f6394298035a7332c441868f3b0169f4/tasks/__init__.py
-import invoke
 import re
 
-from . import vendoring, release
-from .vendoring import vendor_passa
 from pathlib import Path
 
+import invoke
+
+from . import release, vendoring
+from .vendoring import vendor_passa
+
+
 ROOT = Path(".").parent.parent.absolute()
 
-
 ns = invoke.Collection(vendoring, release, release.clean_mdchangelog, vendor_passa.vendor_passa)
diff --git a/tasks/release.py b/tasks/release.py
index 030f1832..7c2e7aba 100644
--- a/tasks/release.py
+++ b/tasks/release.py
@@ -1,7 +1,7 @@
 # -*- coding=utf-8 -*-
 import datetime
-import pathlib
 import os
+import pathlib
 import re
 import sys
 
diff --git a/tasks/vendoring/__init__.py b/tasks/vendoring/__init__.py
index 0ec59b8e..c9757965 100644
--- a/tasks/vendoring/__init__.py
+++ b/tasks/vendoring/__init__.py
@@ -1,23 +1,29 @@
 # -*- coding=utf-8 -*-
-""""Vendoring script, python 3.5 needed"""
 # Taken from pip
 # see https://github.com/pypa/pip/blob/95bcf8c5f6394298035a7332c441868f3b0169f4/tasks/vendoring/__init__.py
-from pipenv.vendor.vistir.compat import NamedTemporaryFile, TemporaryDirectory
-from pipenv.vendor.vistir.contextmanagers import open_file
-from pathlib import Path
-from pipenv.utils import mkdir_p
+""""Vendoring script, python 3.5 needed"""
+
 import io
-from urllib3.util import parse_url as urllib3_parse
-import bs4
-# from tempfile import TemporaryDirectory
-import tarfile
-import zipfile
 import re
 import shutil
 import sys
+# from tempfile import TemporaryDirectory
+import tarfile
+import zipfile
+
+from pathlib import Path
+
+import bs4
 import invoke
 import requests
 
+from urllib3.util import parse_url as urllib3_parse
+
+from pipenv.utils import mkdir_p
+from pipenv.vendor.vistir.compat import NamedTemporaryFile, TemporaryDirectory
+from pipenv.vendor.vistir.contextmanagers import open_file
+
+
 TASK_NAME = 'update'
 
 LIBRARY_DIRNAMES = {
diff --git a/tasks/vendoring/vendor_passa.py b/tasks/vendoring/vendor_passa.py
index ad179a10..f2c58745 100644
--- a/tasks/vendoring/vendor_passa.py
+++ b/tasks/vendoring/vendor_passa.py
@@ -1,6 +1,6 @@
-from pipenv._compat import TemporaryDirectory
 import invoke
 
+from pipenv._compat import TemporaryDirectory
 
 from . import _get_git_root, _get_vendor_dir, log
 
diff --git a/tests/integration/conftest.py b/tests/integration/conftest.py
index 822617ab..91861db3 100644
--- a/tests/integration/conftest.py
+++ b/tests/integration/conftest.py
@@ -5,17 +5,16 @@ import warnings
 
 import pytest
 
-from pipenv._compat import TemporaryDirectory, Path
-from pipenv.exceptions import VirtualenvActivationException
-from pipenv.utils import temp_environ
-from pipenv.vendor import delegator
-from pipenv.vendor import requests
-from pipenv.vendor import toml
-from pipenv.vendor import tomlkit
-from pytest_pypi.app import prepare_packages as prepare_pypi_packages, prepare_fixtures
 from vistir.compat import ResourceWarning, fs_str
 from vistir.path import mkdir_p
 
+from pipenv._compat import Path, TemporaryDirectory
+from pipenv.exceptions import VirtualenvActivationException
+from pipenv.utils import temp_environ
+from pipenv.vendor import delegator, requests, toml, tomlkit
+from pytest_pypi.app import prepare_fixtures
+from pytest_pypi.app import prepare_packages as prepare_pypi_packages
+
 
 warnings.simplefilter("default", category=ResourceWarning)
 
diff --git a/tests/integration/test_cli.py b/tests/integration/test_cli.py
index 7ebcee1d..946b98f7 100644
--- a/tests/integration/test_cli.py
+++ b/tests/integration/test_cli.py
@@ -5,7 +5,9 @@ import os
 import re
 
 import pytest
+
 from flaky import flaky
+
 from pipenv.utils import normalize_drive
 
 
diff --git a/tests/integration/test_dot_venv.py b/tests/integration/test_dot_venv.py
index 53f5fb1d..db61d321 100644
--- a/tests/integration/test_dot_venv.py
+++ b/tests/integration/test_dot_venv.py
@@ -1,12 +1,12 @@
 import os
 
-from pipenv._compat import TemporaryDirectory, Path
-from pipenv.project import Project
-from pipenv.utils import temp_environ, normalize_drive, get_windows_path
-from pipenv.vendor import delegator
-
 import pytest
 
+from pipenv._compat import Path, TemporaryDirectory
+from pipenv.project import Project
+from pipenv.utils import get_windows_path, normalize_drive, temp_environ
+from pipenv.vendor import delegator
+
 
 @pytest.mark.dotvenv
 def test_venv_in_project(PipenvInstance, pypi):
diff --git a/tests/integration/test_install_basic.py b/tests/integration/test_install_basic.py
index f420c8c2..b5b26117 100644
--- a/tests/integration/test_install_basic.py
+++ b/tests/integration/test_install_basic.py
@@ -1,14 +1,14 @@
 import os
 
-from pipenv.utils import temp_environ
-from pipenv._compat import TemporaryDirectory, Path
-from pipenv.vendor import delegator
-from pipenv.project import Project
-
 import pytest
 
 from flaky import flaky
 
+from pipenv._compat import Path, TemporaryDirectory
+from pipenv.project import Project
+from pipenv.utils import temp_environ
+from pipenv.vendor import delegator
+
 
 @pytest.mark.install
 @pytest.mark.setup
diff --git a/tests/integration/test_install_markers.py b/tests/integration/test_install_markers.py
index 0967026a..bee1d994 100644
--- a/tests/integration/test_install_markers.py
+++ b/tests/integration/test_install_markers.py
@@ -1,14 +1,14 @@
 import os
 import sys
 
-from pipenv.patched import pipfile
-from pipenv.project import Project
-from pipenv.utils import temp_environ
-
 import pytest
 
 from flaky import flaky
 
+from pipenv.patched import pipfile
+from pipenv.project import Project
+from pipenv.utils import temp_environ
+
 
 py3_only = pytest.mark.skipif(sys.version_info < (3, 0), reason="requires Python3")
 skip_py37 = pytest.mark.skipif(sys.version_info >= (3, 7), reason="Skip for python 3.7")
diff --git a/tests/integration/test_install_twists.py b/tests/integration/test_install_twists.py
index 4a623040..0879a265 100644
--- a/tests/integration/test_install_twists.py
+++ b/tests/integration/test_install_twists.py
@@ -1,14 +1,15 @@
 import os
 import shutil
-from pipenv.project import Project
-from pipenv._compat import Path
-from pipenv.vendor import delegator
-from pipenv.utils import mkdir_p, temp_environ
 
 import pytest
 
 from flaky import flaky
 
+from pipenv._compat import Path
+from pipenv.project import Project
+from pipenv.utils import mkdir_p, temp_environ
+from pipenv.vendor import delegator
+
 
 @pytest.mark.extras
 @pytest.mark.install
diff --git a/tests/integration/test_install_uri.py b/tests/integration/test_install_uri.py
index 35cdb001..4dd35882 100644
--- a/tests/integration/test_install_uri.py
+++ b/tests/integration/test_install_uri.py
@@ -1,7 +1,11 @@
-import pytest
 import os
+
+import pytest
+
 from flaky import flaky
+
 import delegator
+
 from pipenv._compat import Path
 
 
diff --git a/tests/integration/test_lock.py b/tests/integration/test_lock.py
index 6080c293..ab5178a0 100644
--- a/tests/integration/test_lock.py
+++ b/tests/integration/test_lock.py
@@ -1,11 +1,12 @@
-import pytest
 import os
 import sys
 
-from pipenv.utils import temp_environ
+import pytest
 
 from flaky import flaky
 
+from pipenv.utils import temp_environ
+
 
 @pytest.mark.lock
 @pytest.mark.requirements
diff --git a/tests/integration/test_pipenv.py b/tests/integration/test_pipenv.py
index cb7b9249..deacc495 100644
--- a/tests/integration/test_pipenv.py
+++ b/tests/integration/test_pipenv.py
@@ -4,15 +4,16 @@ XXX: Try our best to reduce tests in this file.
 """
 
 import os
+
 from tempfile import mkdtemp
 
 import mock
 import pytest
 
-from pipenv.utils import temp_environ
-from pipenv.project import Project
-from pipenv.vendor import delegator
 from pipenv._compat import Path
+from pipenv.project import Project
+from pipenv.utils import temp_environ
+from pipenv.vendor import delegator
 
 
 @pytest.mark.code
diff --git a/tests/integration/test_project.py b/tests/integration/test_project.py
index 8bb76da1..f9a2ba12 100644
--- a/tests/integration/test_project.py
+++ b/tests/integration/test_project.py
@@ -1,11 +1,13 @@
 # -*- coding=utf-8 -*-
 import io
-import pytest
 import os
 import tarfile
+
+import pytest
+
+from pipenv.patched import pipfile
 from pipenv.project import Project
 from pipenv.utils import temp_environ
-from pipenv.patched import pipfile
 
 
 @pytest.mark.project
diff --git a/tests/integration/test_run.py b/tests/integration/test_run.py
index 8e82a6e2..8cd39115 100644
--- a/tests/integration/test_run.py
+++ b/tests/integration/test_run.py
@@ -1,10 +1,10 @@
 import os
 
+import pytest
+
 from pipenv.project import Project
 from pipenv.utils import temp_environ
 
-import pytest
-
 
 @pytest.mark.run
 @pytest.mark.dotenv
diff --git a/tests/integration/test_sync.py b/tests/integration/test_sync.py
index 2ef06ddc..8b8745e7 100644
--- a/tests/integration/test_sync.py
+++ b/tests/integration/test_sync.py
@@ -1,9 +1,9 @@
 import os
 
-from pipenv.utils import temp_environ
-
 import pytest
 
+from pipenv.utils import temp_environ
+
 
 @pytest.mark.sync
 def test_sync_error_without_lockfile(PipenvInstance, pypi):
diff --git a/tests/integration/test_uninstall.py b/tests/integration/test_uninstall.py
index 5f493cac..e366861b 100644
--- a/tests/integration/test_uninstall.py
+++ b/tests/integration/test_uninstall.py
@@ -1,10 +1,10 @@
 import os
 import shutil
 
-from pipenv.utils import temp_environ
-
 import pytest
 
+from pipenv.utils import temp_environ
+
 
 @pytest.mark.run
 @pytest.mark.uninstall
diff --git a/tests/integration/test_windows.py b/tests/integration/test_windows.py
index da138f7a..9c2b7074 100644
--- a/tests/integration/test_windows.py
+++ b/tests/integration/test_windows.py
@@ -1,10 +1,10 @@
 import os
 
-from pipenv.project import Project
-from pipenv._compat import Path
-
 import pytest
 
+from pipenv._compat import Path
+from pipenv.project import Project
+
 
 # This module is run only on Windows.
 pytestmark = pytest.mark.skipif(os.name != 'nt', reason="only relevant on windows")
diff --git a/tests/unit/test_core.py b/tests/unit/test_core.py
index 394e1120..61d318c3 100644
--- a/tests/unit/test_core.py
+++ b/tests/unit/test_core.py
@@ -1,10 +1,10 @@
 import os
 
-import pytest
 import mock
+import pytest
 
 from pipenv._compat import TemporaryDirectory
-from pipenv.core import warn_in_virtualenv, load_dot_env
+from pipenv.core import load_dot_env, warn_in_virtualenv
 from pipenv.utils import temp_environ
 
 
diff --git a/tests/unit/test_utils.py b/tests/unit/test_utils.py
index 422c1002..aeaf3ed3 100644
--- a/tests/unit/test_utils.py
+++ b/tests/unit/test_utils.py
@@ -1,8 +1,11 @@
 # -*- coding: utf-8 -*-
 import os
+
 import pytest
-from mock import patch, Mock
+
 from first import first
+from mock import Mock, patch
+
 import pipenv.utils
 import pythonfinder.utils