Apply black formatting

src/pip/_internal/__init__.py

@@ -7,7 +7,7 @@
 _log.init_logging()
 
 
-def main(args: (Optional[List[str]]) = None) -> int:
+def main(args: Optional[List[str]] = None) -> int:
     """This is preserved for old console scripts that may still be referencing
     it.
 

src/pip/_internal/cli/main.py

@@ -1,5 +1,6 @@
 """Primary application entrypoint.
 """
+
 import locale
 import logging
 import os

src/pip/_internal/cli/req_command.py

@@ -66,7 +66,6 @@ def _create_truststore_ssl_context() -> Optional["SSLContext"]:
 
 
 class SessionCommandMixin(CommandContextMixIn):
-
     """
     A class mixin for command classes needing _build_session().
     """
@@ -155,7 +154,6 @@ def _build_session(
 
 
 class IndexGroupCommand(Command, SessionCommandMixin):
-
     """
     Abstract base class for commands with the index_group options.
 
@@ -442,9 +440,11 @@ def get_requirements(
                     isolated=options.isolated_mode,
                     use_pep517=options.use_pep517,
                     user_supplied=True,
-                    config_settings=parsed_req.options.get("config_settings")
-                    if parsed_req.options
-                    else None,
+                    config_settings=(
+                        parsed_req.options.get("config_settings")
+                        if parsed_req.options
+                        else None
+                    ),
                 )
                 requirements.append(req_to_add)
 

src/pip/_internal/index/collector.py

@@ -196,8 +196,7 @@ def __hash__(self) -> int:
 
 
 class ParseLinks(Protocol):
-    def __call__(self, page: "IndexContent") -> Iterable[Link]:
-        ...
+    def __call__(self, page: "IndexContent") -> Iterable[Link]: ...
 
 
 def with_cached_index_content(fn: ParseLinks) -> ParseLinks:
@@ -395,7 +394,6 @@ class CollectedSources(NamedTuple):
 
 
 class LinkCollector:
-
     """
     Responsible for collecting Link objects from all configured locations,
     making network requests as needed.

src/pip/_internal/index/package_finder.py

@@ -106,7 +106,6 @@ class LinkType(enum.Enum):
 
 
 class LinkEvaluator:
-
     """
     Responsible for evaluating links for a particular project.
     """
@@ -324,7 +323,6 @@ def filter_unallowed_hashes(
 
 
 class CandidatePreferences:
-
     """
     Encapsulates some of the preferences for filtering and sorting
     InstallationCandidate objects.
@@ -383,7 +381,6 @@ def iter_applicable(self) -> Iterable[InstallationCandidate]:
 
 
 class CandidateEvaluator:
-
     """
     Responsible for filtering and sorting candidates for installation based
     on what tags are valid.

src/pip/_internal/models/direct_url.py

@@ -1,4 +1,5 @@
 """ PEP 610 """
+
 import json
 import re
 import urllib.parse

src/pip/_internal/models/scheme.py

@@ -5,7 +5,6 @@
 https://docs.python.org/3/install/index.html#alternate-installation.
 """
 
-
 SCHEME_KEYS = ["platlib", "purelib", "headers", "scripts", "data"]
 
 

src/pip/_internal/models/search_scope.py

@@ -15,7 +15,6 @@
 
 
 class SearchScope:
-
     """
     Encapsulates the locations that pip is configured to search.
     """

src/pip/_internal/models/target_python.py

@@ -8,7 +8,6 @@
 
 
 class TargetPython:
-
     """
     Encapsulates the properties of a Python interpreter one is targeting
     for a package install, download, etc.

src/pip/_internal/models/wheel.py

@@ -1,6 +1,7 @@
 """Represents a wheel file and provides access to the various parts of the
 name that have meaning.
 """
+
 import re
 from typing import Dict, Iterable, List
 

src/pip/_internal/network/auth.py

@@ -3,6 +3,7 @@
 Contains interface (MultiDomainBasicAuth) and associated glue code for
 providing credentials in the context of network requests.
 """
+
 import logging
 import os
 import shutil
@@ -47,12 +48,12 @@ class KeyRingBaseProvider(ABC):
     has_keyring: bool
 
     @abstractmethod
-    def get_auth_info(self, url: str, username: Optional[str]) -> Optional[AuthInfo]:
-        ...
+    def get_auth_info(
+        self, url: str, username: Optional[str]
+    ) -> Optional[AuthInfo]: ...
 
     @abstractmethod
-    def save_auth_info(self, url: str, username: str, password: str) -> None:
-        ...
+    def save_auth_info(self, url: str, username: str, password: str) -> None: ...
 
 
 class KeyRingNullProvider(KeyRingBaseProvider):

src/pip/_internal/network/download.py

@@ -1,5 +1,6 @@
 """Download files with progress indicators.
 """
+
 import email.message
 import logging
 import mimetypes

src/pip/_internal/operations/install/editable_legacy.py

@@ -1,5 +1,6 @@
 """Legacy editable installation process, i.e. `setup.py develop`.
 """
+
 import logging
 from typing import Optional, Sequence
 

src/pip/_internal/resolution/legacy/resolver.py

@@ -245,9 +245,9 @@ def _add_requirement_to_set(
             return [install_req], None
 
         try:
-            existing_req: Optional[
-                InstallRequirement
-            ] = requirement_set.get_requirement(install_req.name)
+            existing_req: Optional[InstallRequirement] = (
+                requirement_set.get_requirement(install_req.name)
+            )
         except KeyError:
             existing_req = None
 

src/pip/_internal/utils/deprecation.py

@@ -87,19 +87,23 @@ def deprecated(
         (reason, f"{DEPRECATION_MSG_PREFIX}{{}}"),
         (
             gone_in,
-            "pip {} will enforce this behaviour change."
-            if not is_gone
-            else "Since pip {}, this is no longer supported.",
+            (
+                "pip {} will enforce this behaviour change."
+                if not is_gone
+                else "Since pip {}, this is no longer supported."
+            ),
         ),
         (
             replacement,
             "A possible replacement is {}.",
         ),
         (
             feature_flag,
-            "You can use the flag --use-feature={} to test the upcoming behaviour."
-            if not is_gone
-            else None,
+            (
+                "You can use the flag --use-feature={} to test the upcoming behaviour."
+                if not is_gone
+                else None
+            ),
         ),
         (
             issue,

src/pip/_internal/utils/logging.py

@@ -212,7 +212,6 @@ def filter(self, record: logging.LogRecord) -> bool:
 
 
 class ExcludeLoggerFilter(Filter):
-
     """
     A logging Filter that excludes records from a logger (or its children).
     """

src/pip/_internal/vcs/versioncontrol.py

@@ -115,7 +115,6 @@ def __init__(self, url: str):
 
 
 class RevOptions:
-
     """
     Encapsulates a VCS-specific revision to install, along with any VCS
     install options.

tests/functional/test_cli.py

@@ -1,5 +1,6 @@
 """Basic CLI functionality checks.
 """
+
 import subprocess
 import sys
 from pathlib import Path

tests/functional/test_completion.py

@@ -126,8 +126,7 @@ def __call__(
         cwd: Union[Path, str, None] = None,
         include_env: bool = True,
         expect_error: bool = True,
-    ) -> Tuple[TestPipResult, PipTestEnvironment]:
-        ...
+    ) -> Tuple[TestPipResult, PipTestEnvironment]: ...
 
 
 @pytest.fixture

tests/functional/test_configuration.py

@@ -1,5 +1,6 @@
 """Tests for the config command
 """
+
 import re
 import textwrap
 

tests/functional/test_hash.py

@@ -1,4 +1,5 @@
 """Tests for the ``pip hash`` command"""
+
 from pathlib import Path
 
 from tests.lib import PipTestEnvironment

tests/functional/test_install_compat.py

@@ -2,6 +2,7 @@
 Tests for compatibility workarounds.
 
 """
+
 import os
 from pathlib import Path
 

tests/functional/test_install_reqs.py

@@ -29,8 +29,7 @@ def args(self) -> Any:
 
 
 class ArgRecordingSdistMaker(Protocol):
-    def __call__(self, name: str, **kwargs: Any) -> ArgRecordingSdist:
-        ...
+    def __call__(self, name: str, **kwargs: Any) -> ArgRecordingSdist: ...
 
 
 @pytest.fixture()

tests/functional/test_install_user.py

@@ -1,6 +1,7 @@
 """
 tests specific to "pip install --user"
 """
+
 import os
 import textwrap
 from os.path import curdir, isdir, isfile

tests/functional/test_new_resolver.py

@@ -930,8 +930,7 @@ def __call__(
             version: str,
             requires: List[str],
             extras: Dict[str, List[str]],
-        ) -> str:
-            ...
+        ) -> str: ...
 
 
 def _local_with_setup(

tests/functional/test_no_color.py

@@ -1,6 +1,7 @@
 """
 Test specific for the --no-color option
 """
+
 import os
 import shutil
 import subprocess

tests/functional/test_uninstall_user.py

@@ -1,6 +1,7 @@
 """
 tests specific to uninstalling --user installs
 """
+
 from os.path import isdir, isfile, normcase
 
 import pytest

tests/functional/test_vcs_git.py

@@ -1,6 +1,7 @@
 """
 Contains functional tests of the Git class.
 """
+
 import logging
 import os
 import pathlib

tests/functional/test_wheel.py

@@ -1,4 +1,5 @@
 """'pip wheel' tests"""
+
 import os
 import re
 import sys

tests/lib/__init__.py

@@ -1371,8 +1371,7 @@ def __call__(
         tmpdir: pathlib.Path,
         virtualenv: Optional[VirtualEnvironment] = None,
         environ: Optional[Dict[AnyStr, AnyStr]] = None,
-    ) -> PipTestEnvironment:
-        ...
+    ) -> PipTestEnvironment: ...
 
 
 CertFactory = Callable[[], str]

tests/lib/filesystem.py

@@ -1,5 +1,6 @@
 """Helpers for filesystem-dependent tests.
 """
+
 import os
 from functools import partial
 from itertools import chain

tests/lib/test_lib.py

@@ -1,4 +1,5 @@
 """Test the test support."""
+
 import filecmp
 import pathlib
 import re

tests/lib/test_wheel.py

@@ -1,5 +1,6 @@
 """Tests for wheel helper.
 """
+
 import csv
 from email import message_from_string
 from email.message import Message

tests/lib/wheel.py

@@ -1,5 +1,6 @@
 """Helper for building wheels as would be in test cases.
 """
+
 import csv
 import itertools
 from base64 import urlsafe_b64encode

tests/unit/test_locations.py

@@ -2,6 +2,7 @@
 locations.py tests
 
 """
+
 import getpass
 import os
 import shutil

tests/unit/test_options.py

@@ -195,7 +195,6 @@ def test_cache_dir__PIP_NO_CACHE_DIR_invalid__with_no_cache_dir(
 
 
 class TestUsePEP517Options:
-
     """
     Test options related to using --use-pep517.
     """

tests/unit/test_req_file.py

@@ -70,9 +70,11 @@ def parse_reqfile(
         yield install_req_from_parsed_requirement(
             parsed_req,
             isolated=isolated,
-            config_settings=parsed_req.options.get("config_settings")
-            if parsed_req.options
-            else None,
+            config_settings=(
+                parsed_req.options.get("config_settings")
+                if parsed_req.options
+                else None
+            ),
         )
 
 
@@ -196,8 +198,7 @@ def __call__(
         options: Optional[Values] = None,
         session: Optional[PipSession] = None,
         constraint: bool = False,
-    ) -> List[InstallRequirement]:
-        ...
+    ) -> List[InstallRequirement]: ...
 
 
 @pytest.fixture