From f77b8ca051a9d05147e0fa2d08d08bafe27dea8a Mon Sep 17 00:00:00 2001
From: Maxim Kurnikov <maxim.kurnikov@gmail.com>
Date: Fri, 22 Feb 2019 14:17:07 +0300
Subject: [PATCH] remove #noqa: F401

---
 src/pip/_internal/build_env.py             |  4 ++--
 src/pip/_internal/cache.py                 |  4 ++--
 src/pip/_internal/cli/base_command.py      |  8 ++++----
 src/pip/_internal/cli/cmdoptions.py        |  6 +++---
 src/pip/_internal/cli/main_parser.py       |  2 +-
 src/pip/_internal/commands/__init__.py     |  4 ++--
 src/pip/_internal/configuration.py         |  2 +-
 src/pip/_internal/download.py              |  8 ++++----
 src/pip/_internal/exceptions.py            |  4 ++--
 src/pip/_internal/index.py                 | 12 ++++++------
 src/pip/_internal/locations.py             |  2 +-
 src/pip/_internal/models/candidate.py      |  6 +++---
 src/pip/_internal/models/format_control.py |  2 +-
 src/pip/_internal/models/link.py           |  4 ++--
 src/pip/_internal/operations/check.py      |  4 ++--
 src/pip/_internal/operations/freeze.py     |  6 +++---
 src/pip/_internal/operations/prepare.py    | 10 +++++-----
 src/pip/_internal/pep425tags.py            |  2 +-
 src/pip/_internal/pyproject.py             |  2 +-
 src/pip/_internal/req/__init__.py          |  2 +-
 src/pip/_internal/req/constructors.py      |  4 ++--
 src/pip/_internal/req/req_file.py          | 10 +++++-----
 src/pip/_internal/req/req_install.py       | 14 +++++++-------
 src/pip/_internal/req/req_set.py           |  4 ++--
 src/pip/_internal/req/req_tracker.py       |  6 +++---
 src/pip/_internal/resolve.py               | 14 +++++++-------
 src/pip/_internal/utils/appdirs.py         |  4 +---
 src/pip/_internal/utils/compat.py          |  2 +-
 src/pip/_internal/utils/deprecation.py     |  2 +-
 src/pip/_internal/utils/encoding.py        |  2 +-
 src/pip/_internal/utils/glibc.py           |  2 +-
 src/pip/_internal/utils/hashes.py          |  6 +++---
 src/pip/_internal/utils/misc.py            |  8 ++++----
 src/pip/_internal/utils/outdated.py        |  6 +++---
 src/pip/_internal/utils/packaging.py       |  6 +++---
 src/pip/_internal/utils/typing.py          |  2 +-
 src/pip/_internal/utils/ui.py              |  2 +-
 src/pip/_internal/vcs/__init__.py          |  4 ++--
 src/pip/_internal/wheel.py                 | 16 ++++++++--------
 39 files changed, 103 insertions(+), 105 deletions(-)

diff --git a/src/pip/_internal/build_env.py b/src/pip/_internal/build_env.py
index 85a2c4a91..89830e72b 100644
--- a/src/pip/_internal/build_env.py
+++ b/src/pip/_internal/build_env.py
@@ -18,8 +18,8 @@ from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 from pip._internal.utils.ui import open_spinner
 
 if MYPY_CHECK_RUNNING:
-    from typing import Tuple, Set, Iterable, Optional, List  # noqa: F401
-    from pip._internal.index import PackageFinder  # noqa: F401
+    from typing import Tuple, Set, Iterable, Optional, List
+    from pip._internal.index import PackageFinder
 
 logger = logging.getLogger(__name__)
 
diff --git a/src/pip/_internal/cache.py b/src/pip/_internal/cache.py
index eb295c4e7..9379343c2 100644
--- a/src/pip/_internal/cache.py
+++ b/src/pip/_internal/cache.py
@@ -16,8 +16,8 @@ from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 from pip._internal.wheel import InvalidWheelFilename, Wheel
 
 if MYPY_CHECK_RUNNING:
-    from typing import Optional, Set, List, Any  # noqa: F401
-    from pip._internal.index import FormatControl  # noqa: F401
+    from typing import Optional, Set, List, Any
+    from pip._internal.index import FormatControl
 
 logger = logging.getLogger(__name__)
 
diff --git a/src/pip/_internal/cli/base_command.py b/src/pip/_internal/cli/base_command.py
index 3ceea4992..659686f35 100644
--- a/src/pip/_internal/cli/base_command.py
+++ b/src/pip/_internal/cli/base_command.py
@@ -37,10 +37,10 @@ from pip._internal.utils.outdated import pip_version_check
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import Optional, List, Tuple, Any  # noqa: F401
-    from optparse import Values  # noqa: F401
-    from pip._internal.cache import WheelCache  # noqa: F401
-    from pip._internal.req.req_set import RequirementSet  # noqa: F401
+    from typing import Optional, List, Tuple, Any
+    from optparse import Values
+    from pip._internal.cache import WheelCache
+    from pip._internal.req.req_set import RequirementSet
 
 __all__ = ['Command']
 
diff --git a/src/pip/_internal/cli/cmdoptions.py b/src/pip/_internal/cli/cmdoptions.py
index 5cf5ee970..0074f89d9 100644
--- a/src/pip/_internal/cli/cmdoptions.py
+++ b/src/pip/_internal/cli/cmdoptions.py
@@ -24,9 +24,9 @@ from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 from pip._internal.utils.ui import BAR_TYPES
 
 if MYPY_CHECK_RUNNING:
-    from typing import Any, Callable, Dict, List, Optional, Union  # noqa: F401
-    from optparse import OptionParser, Values  # noqa: F401
-    from pip._internal.cli.parser import ConfigOptionParser  # noqa: F401
+    from typing import Any, Callable, Dict, List, Optional, Union
+    from optparse import OptionParser, Values
+    from pip._internal.cli.parser import ConfigOptionParser
 
 
 def raise_option_error(parser, option, msg):
diff --git a/src/pip/_internal/cli/main_parser.py b/src/pip/_internal/cli/main_parser.py
index b17c74928..767f35d50 100644
--- a/src/pip/_internal/cli/main_parser.py
+++ b/src/pip/_internal/cli/main_parser.py
@@ -17,7 +17,7 @@ from pip._internal.utils.misc import get_prog
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import Tuple, List  # noqa: F401
+    from typing import Tuple, List
 
 
 __all__ = ["create_main_parser", "parse_command"]
diff --git a/src/pip/_internal/commands/__init__.py b/src/pip/_internal/commands/__init__.py
index c7d1da3d9..2e90db34f 100644
--- a/src/pip/_internal/commands/__init__.py
+++ b/src/pip/_internal/commands/__init__.py
@@ -20,8 +20,8 @@ from pip._internal.commands.wheel import WheelCommand
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import List, Type  # noqa: F401
-    from pip._internal.cli.base_command import Command  # noqa: F401
+    from typing import List, Type
+    from pip._internal.cli.base_command import Command
 
 commands_order = [
     InstallCommand,
diff --git a/src/pip/_internal/configuration.py b/src/pip/_internal/configuration.py
index fe6df9b75..6458d6db5 100644
--- a/src/pip/_internal/configuration.py
+++ b/src/pip/_internal/configuration.py
@@ -29,7 +29,7 @@ from pip._internal.utils.misc import ensure_dir, enum
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import (  # noqa: F401
+    from typing import (
         Any, Dict, Iterable, List, NewType, Optional, Tuple
     )
 
diff --git a/src/pip/_internal/download.py b/src/pip/_internal/download.py
index cc2fa7098..3f5bb0d5e 100644
--- a/src/pip/_internal/download.py
+++ b/src/pip/_internal/download.py
@@ -48,12 +48,12 @@ from pip._internal.utils.ui import DownloadProgressProvider
 from pip._internal.vcs import vcs
 
 if MYPY_CHECK_RUNNING:
-    from typing import (  # noqa: F401
+    from typing import (
         Optional, Tuple, Dict, IO, Text, Union
     )
-    from pip._internal.models.link import Link  # noqa: F401
-    from pip._internal.utils.hashes import Hashes  # noqa: F401
-    from pip._internal.vcs import AuthInfo  # noqa: F401
+    from pip._internal.models.link import Link
+    from pip._internal.utils.hashes import Hashes
+    from pip._internal.vcs import AuthInfo
 
 try:
     import ssl  # noqa
diff --git a/src/pip/_internal/exceptions.py b/src/pip/_internal/exceptions.py
index 38ceeea92..7b291a1e4 100644
--- a/src/pip/_internal/exceptions.py
+++ b/src/pip/_internal/exceptions.py
@@ -8,8 +8,8 @@ from pip._vendor.six import iteritems
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import Optional  # noqa: F401
-    from pip._internal.req.req_install import InstallRequirement  # noqa: F401
+    from typing import Optional
+    from pip._internal.req.req_install import InstallRequirement
 
 
 class PipError(Exception):
diff --git a/src/pip/_internal/index.py b/src/pip/_internal/index.py
index 9eda3a351..479549d94 100644
--- a/src/pip/_internal/index.py
+++ b/src/pip/_internal/index.py
@@ -41,15 +41,15 @@ from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 from pip._internal.wheel import Wheel
 
 if MYPY_CHECK_RUNNING:
-    from logging import Logger  # noqa: F401
-    from typing import (  # noqa: F401
+    from logging import Logger
+    from typing import (
         Tuple, Optional, Any, List, Union, Callable, Set, Sequence,
         Iterable, MutableMapping
     )
-    from pip._vendor.packaging.version import _BaseVersion  # noqa: F401
-    from pip._vendor.requests import Response  # noqa: F401
-    from pip._internal.req import InstallRequirement  # noqa: F401
-    from pip._internal.download import PipSession  # noqa: F401
+    from pip._vendor.packaging.version import _BaseVersion
+    from pip._vendor.requests import Response
+    from pip._internal.req import InstallRequirement
+    from pip._internal.download import PipSession
 
     SecureOrigin = Tuple[str, str, Optional[str]]
     BuildTag = Tuple[Any, ...]  # either emply tuple or Tuple[int, str]
diff --git a/src/pip/_internal/locations.py b/src/pip/_internal/locations.py
index c6e2a3e48..8fd84c3d8 100644
--- a/src/pip/_internal/locations.py
+++ b/src/pip/_internal/locations.py
@@ -15,7 +15,7 @@ from pip._internal.utils.compat import WINDOWS, expanduser
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import Any, Union, Dict, List, Optional  # noqa: F401
+    from typing import Any, Union, Dict, List, Optional
 
 
 # Application Directories
diff --git a/src/pip/_internal/models/candidate.py b/src/pip/_internal/models/candidate.py
index 4475458ab..b66c3657f 100644
--- a/src/pip/_internal/models/candidate.py
+++ b/src/pip/_internal/models/candidate.py
@@ -4,9 +4,9 @@ from pip._internal.utils.models import KeyBasedCompareMixin
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from pip._vendor.packaging.version import _BaseVersion  # noqa: F401
-    from pip._internal.models.link import Link  # noqa: F401
-    from typing import Any, Union  # noqa: F401
+    from pip._vendor.packaging.version import _BaseVersion
+    from pip._internal.models.link import Link
+    from typing import Any
 
 
 class InstallationCandidate(KeyBasedCompareMixin):
diff --git a/src/pip/_internal/models/format_control.py b/src/pip/_internal/models/format_control.py
index 971a3914c..53138e48e 100644
--- a/src/pip/_internal/models/format_control.py
+++ b/src/pip/_internal/models/format_control.py
@@ -3,7 +3,7 @@ from pip._vendor.packaging.utils import canonicalize_name
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import Optional, Set, FrozenSet  # noqa: F401
+    from typing import Optional, Set, FrozenSet
 
 
 class FormatControl(object):
diff --git a/src/pip/_internal/models/link.py b/src/pip/_internal/models/link.py
index ad2f93e19..753e309a0 100644
--- a/src/pip/_internal/models/link.py
+++ b/src/pip/_internal/models/link.py
@@ -11,8 +11,8 @@ from pip._internal.utils.models import KeyBasedCompareMixin
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import Optional, Tuple, Union, Text  # noqa: F401
-    from pip._internal.index import HTMLPage  # noqa: F401
+    from typing import Optional, Tuple, Union, Text
+    from pip._internal.index import HTMLPage
 
 
 class Link(KeyBasedCompareMixin):
diff --git a/src/pip/_internal/operations/check.py b/src/pip/_internal/operations/check.py
index 0b56eda45..920df5d48 100644
--- a/src/pip/_internal/operations/check.py
+++ b/src/pip/_internal/operations/check.py
@@ -14,8 +14,8 @@ from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 logger = logging.getLogger(__name__)
 
 if MYPY_CHECK_RUNNING:
-    from pip._internal.req.req_install import InstallRequirement  # noqa: F401
-    from typing import (  # noqa: F401
+    from pip._internal.req.req_install import InstallRequirement
+    from typing import (
         Any, Callable, Dict, Optional, Set, Tuple, List
     )
 
diff --git a/src/pip/_internal/operations/freeze.py b/src/pip/_internal/operations/freeze.py
index 388bb73ab..0c4c76107 100644
--- a/src/pip/_internal/operations/freeze.py
+++ b/src/pip/_internal/operations/freeze.py
@@ -20,11 +20,11 @@ from pip._internal.utils.misc import (
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import (  # noqa: F401
+    from typing import (
         Iterator, Optional, List, Container, Set, Dict, Tuple, Iterable, Union
     )
-    from pip._internal.cache import WheelCache  # noqa: F401
-    from pip._vendor.pkg_resources import (  # noqa: F401
+    from pip._internal.cache import WheelCache
+    from pip._vendor.pkg_resources import (
         Distribution, Requirement
     )
 
diff --git a/src/pip/_internal/operations/prepare.py b/src/pip/_internal/operations/prepare.py
index 4f31dd5a6..d1e9896fb 100644
--- a/src/pip/_internal/operations/prepare.py
+++ b/src/pip/_internal/operations/prepare.py
@@ -22,11 +22,11 @@ from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 from pip._internal.vcs import vcs
 
 if MYPY_CHECK_RUNNING:
-    from typing import Any, Optional  # noqa: F401
-    from pip._internal.req.req_install import InstallRequirement  # noqa: F401
-    from pip._internal.index import PackageFinder  # noqa: F401
-    from pip._internal.download import PipSession  # noqa: F401
-    from pip._internal.req.req_tracker import RequirementTracker  # noqa: F401
+    from typing import Any, Optional
+    from pip._internal.req.req_install import InstallRequirement
+    from pip._internal.index import PackageFinder
+    from pip._internal.download import PipSession
+    from pip._internal.req.req_tracker import RequirementTracker
 
 logger = logging.getLogger(__name__)
 
diff --git a/src/pip/_internal/pep425tags.py b/src/pip/_internal/pep425tags.py
index 1e782d1ae..3b68f28d2 100644
--- a/src/pip/_internal/pep425tags.py
+++ b/src/pip/_internal/pep425tags.py
@@ -15,7 +15,7 @@ from pip._internal.utils.compat import get_extension_suffixes
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import (  # noqa: F401
+    from typing import (
         Tuple, Callable, List, Optional, Union, Dict
     )
 
diff --git a/src/pip/_internal/pyproject.py b/src/pip/_internal/pyproject.py
index 8d739a6c1..43efbed42 100644
--- a/src/pip/_internal/pyproject.py
+++ b/src/pip/_internal/pyproject.py
@@ -10,7 +10,7 @@ from pip._internal.exceptions import InstallationError
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import Any, Tuple, Optional, List  # noqa: F401
+    from typing import Any, Tuple, Optional, List
 
 
 def _is_list_of_str(obj):
diff --git a/src/pip/_internal/req/__init__.py b/src/pip/_internal/req/__init__.py
index 5e4eb92f0..177b2b19d 100644
--- a/src/pip/_internal/req/__init__.py
+++ b/src/pip/_internal/req/__init__.py
@@ -9,7 +9,7 @@ from pip._internal.utils.logging import indent_log
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import List, Sequence  # noqa: F401
+    from typing import List, Sequence
 
 __all__ = [
     "RequirementSet", "InstallRequirement",
diff --git a/src/pip/_internal/req/constructors.py b/src/pip/_internal/req/constructors.py
index 1eed1dd38..8b3aafc62 100644
--- a/src/pip/_internal/req/constructors.py
+++ b/src/pip/_internal/req/constructors.py
@@ -31,10 +31,10 @@ from pip._internal.vcs import vcs
 from pip._internal.wheel import Wheel
 
 if MYPY_CHECK_RUNNING:
-    from typing import (   # noqa: F401
+    from typing import (
         Optional, Tuple, Set, Any, Union, Text, Dict,
     )
-    from pip._internal.cache import WheelCache  # noqa: F401
+    from pip._internal.cache import WheelCache
 
 
 __all__ = [
diff --git a/src/pip/_internal/req/req_file.py b/src/pip/_internal/req/req_file.py
index 726f2f6a0..3260e8d75 100644
--- a/src/pip/_internal/req/req_file.py
+++ b/src/pip/_internal/req/req_file.py
@@ -22,13 +22,13 @@ from pip._internal.req.constructors import (
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import (  # noqa: F401
+    from typing import (
         Iterator, Tuple, Optional, List, Callable, Text
     )
-    from pip._internal.req import InstallRequirement  # noqa: F401
-    from pip._internal.cache import WheelCache  # noqa: F401
-    from pip._internal.index import PackageFinder  # noqa: F401
-    from pip._internal.download import PipSession  # noqa: F401
+    from pip._internal.req import InstallRequirement
+    from pip._internal.cache import WheelCache
+    from pip._internal.index import PackageFinder
+    from pip._internal.download import PipSession
 
     ReqFileLines = Iterator[Tuple[int, Text]]
 
diff --git a/src/pip/_internal/req/req_install.py b/src/pip/_internal/req/req_install.py
index 0c54e5e48..df39f286c 100644
--- a/src/pip/_internal/req/req_install.py
+++ b/src/pip/_internal/req/req_install.py
@@ -41,15 +41,15 @@ from pip._internal.vcs import vcs
 from pip._internal.wheel import move_wheel_files
 
 if MYPY_CHECK_RUNNING:
-    from typing import (  # noqa: F401
+    from typing import (
         Optional, Iterable, List, Union, Any, Text, Sequence, Dict
     )
-    from pip._internal.build_env import BuildEnvironment  # noqa: F401
-    from pip._internal.cache import WheelCache  # noqa: F401
-    from pip._internal.index import PackageFinder  # noqa: F401
-    from pip._vendor.pkg_resources import Distribution  # noqa: F401
-    from pip._vendor.packaging.specifiers import SpecifierSet  # noqa: F401
-    from pip._vendor.packaging.markers import Marker  # noqa: F401
+    from pip._internal.build_env import BuildEnvironment
+    from pip._internal.cache import WheelCache
+    from pip._internal.index import PackageFinder
+    from pip._vendor.pkg_resources import Distribution
+    from pip._vendor.packaging.specifiers import SpecifierSet
+    from pip._vendor.packaging.markers import Marker
 
 
 logger = logging.getLogger(__name__)
diff --git a/src/pip/_internal/req/req_set.py b/src/pip/_internal/req/req_set.py
index d1410e935..4951d2621 100644
--- a/src/pip/_internal/req/req_set.py
+++ b/src/pip/_internal/req/req_set.py
@@ -9,8 +9,8 @@ from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 from pip._internal.wheel import Wheel
 
 if MYPY_CHECK_RUNNING:
-    from typing import Optional, List, Tuple, Dict, Iterable  # noqa: F401
-    from pip._internal.req.req_install import InstallRequirement  # noqa: F401
+    from typing import Optional, List, Tuple, Dict, Iterable
+    from pip._internal.req.req_install import InstallRequirement
 
 
 logger = logging.getLogger(__name__)
diff --git a/src/pip/_internal/req/req_tracker.py b/src/pip/_internal/req/req_tracker.py
index 82e084a4c..4f5f4f337 100644
--- a/src/pip/_internal/req/req_tracker.py
+++ b/src/pip/_internal/req/req_tracker.py
@@ -10,9 +10,9 @@ from pip._internal.utils.temp_dir import TempDirectory
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import Set, Iterator  # noqa: F401
-    from pip._internal.req.req_install import InstallRequirement  # noqa: F401
-    from pip._internal.models.link import Link  # noqa: F401
+    from typing import Set, Iterator
+    from pip._internal.req.req_install import InstallRequirement
+    from pip._internal.models.link import Link
 
 logger = logging.getLogger(__name__)
 
diff --git a/src/pip/_internal/resolve.py b/src/pip/_internal/resolve.py
index 33f572f1e..f49667bb8 100644
--- a/src/pip/_internal/resolve.py
+++ b/src/pip/_internal/resolve.py
@@ -25,15 +25,15 @@ from pip._internal.utils.packaging import check_dist_requires_python
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import Optional, DefaultDict, List, Set  # noqa: F401
-    from pip._internal.download import PipSession  # noqa: F401
-    from pip._internal.req.req_install import InstallRequirement  # noqa: F401
-    from pip._internal.index import PackageFinder  # noqa: F401
-    from pip._internal.req.req_set import RequirementSet  # noqa: F401
-    from pip._internal.operations.prepare import (  # noqa: F401
+    from typing import Optional, DefaultDict, List, Set
+    from pip._internal.download import PipSession
+    from pip._internal.req.req_install import InstallRequirement
+    from pip._internal.index import PackageFinder
+    from pip._internal.req.req_set import RequirementSet
+    from pip._internal.operations.prepare import (
         DistAbstraction, RequirementPreparer
     )
-    from pip._internal.cache import WheelCache  # noqa: F401
+    from pip._internal.cache import WheelCache
 
 logger = logging.getLogger(__name__)
 
diff --git a/src/pip/_internal/utils/appdirs.py b/src/pip/_internal/utils/appdirs.py
index 9af9fa7b5..b83d3a96c 100644
--- a/src/pip/_internal/utils/appdirs.py
+++ b/src/pip/_internal/utils/appdirs.py
@@ -13,9 +13,7 @@ from pip._internal.utils.compat import WINDOWS, expanduser
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import (  # noqa: F401
-        List, Union
-    )
+    from typing import List, Union
 
 
 def user_cache_dir(appname):
diff --git a/src/pip/_internal/utils/compat.py b/src/pip/_internal/utils/compat.py
index 2d8b3bf06..845436e48 100644
--- a/src/pip/_internal/utils/compat.py
+++ b/src/pip/_internal/utils/compat.py
@@ -14,7 +14,7 @@ from pip._vendor.six import text_type
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import Tuple, Text  # noqa: F401
+    from typing import Tuple, Text
 
 try:
     import ipaddress
diff --git a/src/pip/_internal/utils/deprecation.py b/src/pip/_internal/utils/deprecation.py
index 0beaf74ba..cd754a15e 100644
--- a/src/pip/_internal/utils/deprecation.py
+++ b/src/pip/_internal/utils/deprecation.py
@@ -12,7 +12,7 @@ from pip import __version__ as current_version
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import Any, Optional  # noqa: F401
+    from typing import Any, Optional
 
 
 class PipDeprecationWarning(Warning):
diff --git a/src/pip/_internal/utils/encoding.py b/src/pip/_internal/utils/encoding.py
index d36defadb..9861530c9 100644
--- a/src/pip/_internal/utils/encoding.py
+++ b/src/pip/_internal/utils/encoding.py
@@ -6,7 +6,7 @@ import sys
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import List, Tuple, Text  # noqa: F401
+    from typing import List, Tuple, Text
 
 BOMS = [
     (codecs.BOM_UTF8, 'utf8'),
diff --git a/src/pip/_internal/utils/glibc.py b/src/pip/_internal/utils/glibc.py
index 8a51f6954..5bea655eb 100644
--- a/src/pip/_internal/utils/glibc.py
+++ b/src/pip/_internal/utils/glibc.py
@@ -7,7 +7,7 @@ import warnings
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import Optional, Tuple  # noqa: F401
+    from typing import Optional, Tuple
 
 
 def glibc_version_string():
diff --git a/src/pip/_internal/utils/hashes.py b/src/pip/_internal/utils/hashes.py
index c6df7a187..a7142069f 100644
--- a/src/pip/_internal/utils/hashes.py
+++ b/src/pip/_internal/utils/hashes.py
@@ -11,14 +11,14 @@ from pip._internal.utils.misc import read_chunks
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import (  # noqa: F401
+    from typing import (
         Dict, List, BinaryIO, NoReturn, Iterator
     )
     from pip._vendor.six import PY3
     if PY3:
-        from hashlib import _Hash  # noqa: F401
+        from hashlib import _Hash
     else:
-        from hashlib import _hash as _Hash  # noqa: F401
+        from hashlib import _hash as _Hash
 
 
 # The recommended hash algo of the moment. Change this whenever the state of
diff --git a/src/pip/_internal/utils/misc.py b/src/pip/_internal/utils/misc.py
index 79e4bad77..8a5808caf 100644
--- a/src/pip/_internal/utils/misc.py
+++ b/src/pip/_internal/utils/misc.py
@@ -43,13 +43,13 @@ else:
     from io import StringIO
 
 if MYPY_CHECK_RUNNING:
-    from typing import (  # noqa: F401
+    from typing import (
         Optional, Tuple, Iterable, List, Match, Union, Any, Mapping, Text,
         AnyStr, Container
     )
-    from pip._vendor.pkg_resources import Distribution  # noqa: F401
-    from pip._internal.models.link import Link  # noqa: F401
-    from pip._internal.utils.ui import SpinnerInterface  # noqa: F401
+    from pip._vendor.pkg_resources import Distribution
+    from pip._internal.models.link import Link
+    from pip._internal.utils.ui import SpinnerInterface
 
 
 __all__ = ['rmtree', 'display_path', 'backup_dir',
diff --git a/src/pip/_internal/utils/outdated.py b/src/pip/_internal/utils/outdated.py
index 37c47a4a5..f76927611 100644
--- a/src/pip/_internal/utils/outdated.py
+++ b/src/pip/_internal/utils/outdated.py
@@ -16,9 +16,9 @@ from pip._internal.utils.misc import ensure_dir, get_installed_version
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    import optparse  # noqa: F401
-    from typing import Any, Dict  # noqa: F401
-    from pip._internal.download import PipSession  # noqa: F401
+    import optparse
+    from typing import Any, Dict
+    from pip._internal.download import PipSession
 
 
 SELFCHECK_DATE_FMT = "%Y-%m-%dT%H:%M:%SZ"
diff --git a/src/pip/_internal/utils/packaging.py b/src/pip/_internal/utils/packaging.py
index 7aaf7b5e8..449f3fd6b 100644
--- a/src/pip/_internal/utils/packaging.py
+++ b/src/pip/_internal/utils/packaging.py
@@ -12,9 +12,9 @@ from pip._internal.utils.misc import display_path
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import Optional  # noqa: F401
-    from email.message import Message  # noqa: F401
-    from pip._vendor.pkg_resources import Distribution  # noqa: F401
+    from typing import Optional
+    from email.message import Message
+    from pip._vendor.pkg_resources import Distribution
 
 
 logger = logging.getLogger(__name__)
diff --git a/src/pip/_internal/utils/typing.py b/src/pip/_internal/utils/typing.py
index e085cdfeb..10170ce29 100644
--- a/src/pip/_internal/utils/typing.py
+++ b/src/pip/_internal/utils/typing.py
@@ -21,7 +21,7 @@ In pip, all static-typing related imports should be guarded as follows:
     from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
     if MYPY_CHECK_RUNNING:
-        from typing import ...  # noqa: F401
+        from typing import ...
 
 Ref: https://github.com/python/mypy/issues/3216
 """
diff --git a/src/pip/_internal/utils/ui.py b/src/pip/_internal/utils/ui.py
index 433675d73..822371f19 100644
--- a/src/pip/_internal/utils/ui.py
+++ b/src/pip/_internal/utils/ui.py
@@ -21,7 +21,7 @@ from pip._internal.utils.misc import format_size
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import Any, Iterator, IO  # noqa: F401
+    from typing import Any, Iterator, IO
 
 try:
     from pip._vendor import colorama
diff --git a/src/pip/_internal/vcs/__init__.py b/src/pip/_internal/vcs/__init__.py
index 9cba76464..41eed89d5 100644
--- a/src/pip/_internal/vcs/__init__.py
+++ b/src/pip/_internal/vcs/__init__.py
@@ -16,10 +16,10 @@ from pip._internal.utils.misc import (
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import (  # noqa: F401
+    from typing import (
         Any, Dict, Iterable, List, Mapping, Optional, Text, Tuple, Type
     )
-    from pip._internal.utils.ui import SpinnerInterface  # noqa: F401
+    from pip._internal.utils.ui import SpinnerInterface
 
     AuthInfo = Tuple[Optional[str], Optional[str]]
 
diff --git a/src/pip/_internal/wheel.py b/src/pip/_internal/wheel.py
index a123ac888..2e5bcf174 100644
--- a/src/pip/_internal/wheel.py
+++ b/src/pip/_internal/wheel.py
@@ -41,19 +41,19 @@ from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 from pip._internal.utils.ui import open_spinner
 
 if MYPY_CHECK_RUNNING:
-    from typing import (  # noqa: F401
+    from typing import (
         Dict, List, Optional, Sequence, Mapping, Tuple, IO, Text, Any,
         Union, Iterable
     )
-    from pip._vendor.packaging.requirements import Requirement  # noqa: F401
-    from pip._internal.req.req_install import InstallRequirement  # noqa: F401
-    from pip._internal.download import PipSession  # noqa: F401
-    from pip._internal.index import FormatControl, PackageFinder  # noqa: F401
-    from pip._internal.operations.prepare import (  # noqa: F401
+    from pip._vendor.packaging.requirements import Requirement
+    from pip._internal.req.req_install import InstallRequirement
+    from pip._internal.download import PipSession
+    from pip._internal.index import FormatControl, PackageFinder
+    from pip._internal.operations.prepare import (
         RequirementPreparer
     )
-    from pip._internal.cache import WheelCache  # noqa: F401
-    from pip._internal.pep425tags import Pep425Tag  # noqa: F401
+    from pip._internal.cache import WheelCache
+    from pip._internal.pep425tags import Pep425Tag
 
     InstalledCSVRow = Tuple[str, ...]