Format with Black

setup.py

@@ -11,32 +11,27 @@
 def read(*parts):
     # intentionally *not* adding an encoding option to open, See:
     #   https://github.com/pypa/virtualenv/issues/201#issuecomment-3145690
-    with codecs.open(os.path.join(here, *parts), 'r') as fp:
+    with codecs.open(os.path.join(here, *parts), "r") as fp:
         return fp.read()
 
 
 def find_version(*file_paths):
     version_file = read(*file_paths)
-    version_match = re.search(
-        r"^__version__ = ['\"]([^'\"]*)['\"]",
-        version_file,
-        re.M,
-    )
+    version_match = re.search(r"^__version__ = ['\"]([^'\"]*)['\"]", version_file, re.M)
     if version_match:
         return version_match.group(1)
 
     raise RuntimeError("Unable to find version string.")
 
 
-long_description = read('README.rst')
+long_description = read("README.rst")
 
 setup(
     name="pip",
     version=find_version("src", "pip", "__init__.py"),
     description="The PyPA recommended tool for installing Python packages.",
     long_description=long_description,
-
-    license='MIT',
+    license="MIT",
     classifiers=[
         "Development Status :: 5 - Production/Stable",
         "Intended Audience :: Developers",
@@ -52,17 +47,12 @@ def find_version(*file_paths):
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: PyPy",
     ],
-    url='https://pip.pypa.io/',
-    keywords='distutils easy_install egg setuptools wheel virtualenv',
-
-    author='The pip developers',
-    author_email='pypa-dev@groups.google.com',
-
+    url="https://pip.pypa.io/",
+    keywords="distutils easy_install egg setuptools wheel virtualenv",
+    author="The pip developers",
+    author_email="pypa-dev@groups.google.com",
     package_dir={"": "src"},
-    packages=find_packages(
-        where="src",
-        exclude=["contrib", "docs", "tests*", "tasks"],
-    ),
+    packages=find_packages(where="src", exclude=["contrib", "docs", "tests*", "tasks"]),
     package_data={
         "pip._vendor.certifi": ["*.pem"],
         "pip._vendor.requests": ["*.pem"],
@@ -74,9 +64,8 @@ def find_version(*file_paths):
             "pip=pip._internal.main:main",
             "pip%s=pip._internal.main:main" % sys.version_info[:1],
             "pip%s.%s=pip._internal.main:main" % sys.version_info[:2],
-        ],
+        ]
     },
-
     zip_safe=False,
-    python_requires='>=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*',
+    python_requires=">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*",
 )

src/pip/_internal/__init__.py

@@ -5,10 +5,7 @@
 
 # We ignore certain warnings from urllib3, since they are not relevant to pip's
 # usecases.
-from pip._vendor.urllib3.exceptions import (
-    DependencyWarning,
-    InsecureRequestWarning,
-)
+from pip._vendor.urllib3.exceptions import DependencyWarning, InsecureRequestWarning
 
 import pip._internal.utils.inject_securetransport  # noqa
 

src/pip/_internal/main.py

@@ -35,7 +35,7 @@ def main(args=None):
     # Needed for locale.getpreferredencoding(False) to work
     # in pip._internal.utils.encoding.auto_decode
     try:
-        locale.setlocale(locale.LC_ALL, '')
+        locale.setlocale(locale.LC_ALL, "")
     except locale.Error as e:
         # setlocale can apparently crash if locale are uninitialized
         logger.debug("Ignoring error %s when setting locale", e)

src/pip/_internal/operations/generate_metadata.py

@@ -27,8 +27,9 @@ def _generate_metadata_legacy(install_req):
     # type: (InstallRequirement) -> None
     req_details_str = install_req.name or "from {}".format(install_req.link)
     logger.debug(
-        'Running setup.py (path:%s) egg_info for package %s',
-        install_req.setup_py_path, req_details_str,
+        "Running setup.py (path:%s) egg_info for package %s",
+        install_req.setup_py_path,
+        req_details_str,
     )
 
     # Compose arguments for subprocess call
@@ -42,9 +43,9 @@ def _generate_metadata_legacy(install_req):
     egg_base_option = []  # type: List[str]
     if not install_req.editable:
         egg_info_dir = os.path.join(
-            install_req.unpacked_source_directory, 'pip-egg-info',
+            install_req.unpacked_source_directory, "pip-egg-info"
         )
-        egg_base_option = ['--egg-base', egg_info_dir]
+        egg_base_option = ["--egg-base", egg_info_dir]
 
         # setuptools complains if the target directory does not exist.
         ensure_dir(egg_info_dir)
@@ -53,7 +54,7 @@ def _generate_metadata_legacy(install_req):
         call_subprocess(
             base_cmd + ["egg_info"] + egg_base_option,
             cwd=install_req.unpacked_source_directory,
-            command_desc='python setup.py egg_info',
+            command_desc="python setup.py egg_info",
         )
 
 

src/pip/_internal/pyproject.py

@@ -15,15 +15,14 @@
 
 def _is_list_of_str(obj):
     # type: (Any) -> bool
-    return (
-        isinstance(obj, list) and
-        all(isinstance(item, six.string_types) for item in obj)
+    return isinstance(obj, list) and all(
+        isinstance(item, six.string_types) for item in obj
     )
 
 
 def make_pyproject_path(unpacked_source_directory):
     # type: (str) -> str
-    path = os.path.join(unpacked_source_directory, 'pyproject.toml')
+    path = os.path.join(unpacked_source_directory, "pyproject.toml")
 
     # Python2 __file__ should not be unicode
     if six.PY2 and isinstance(path, six.text_type):
@@ -36,7 +35,7 @@ def load_pyproject_toml(
     use_pep517,  # type: Optional[bool]
     pyproject_toml,  # type: str
     setup_py,  # type: str
-    req_name  # type: str
+    req_name,  # type: str
 ):
     # type: (...) -> Optional[Tuple[List[str], str, List[str]]]
     """Load the pyproject.toml file.
@@ -86,9 +85,7 @@ def load_pyproject_toml(
             raise InstallationError(
                 "Disabling PEP 517 processing is invalid: "
                 "project specifies a build backend of {} "
-                "in pyproject.toml".format(
-                    build_system["build-backend"]
-                )
+                "in pyproject.toml".format(build_system["build-backend"])
             )
         use_pep517 = True
 
@@ -136,19 +133,24 @@ def load_pyproject_toml(
     # Specifying the build-system table but not the requires key is invalid
     if "requires" not in build_system:
         raise InstallationError(
-            error_template.format(package=req_name, reason=(
-                "it has a 'build-system' table but not "
-                "'build-system.requires' which is mandatory in the table"
-            ))
+            error_template.format(
+                package=req_name,
+                reason=(
+                    "it has a 'build-system' table but not "
+                    "'build-system.requires' which is mandatory in the table"
+                ),
+            )
         )
 
     # Error out if requires is not a list of strings
     requires = build_system["requires"]
     if not _is_list_of_str(requires):
-        raise InstallationError(error_template.format(
-            package=req_name,
-            reason="'build-system.requires' is not a list of strings.",
-        ))
+        raise InstallationError(
+            error_template.format(
+                package=req_name,
+                reason="'build-system.requires' is not a list of strings.",
+            )
+        )
 
     backend = build_system.get("build-backend")
     check = []  # type: List[str]