Sort imports as per newer isort

src/pip/_internal/build_env.py

@@ -11,7 +11,6 @@ from pip._internal.utils.misc import call_subprocess
 from pip._internal.utils.temp_dir import TempDirectory
 from pip._internal.utils.ui import open_spinner
 
-
 logger = logging.getLogger(__name__)
 
 

src/pip/_internal/operations/check.py

@@ -6,7 +6,6 @@ from collections import namedtuple
 from pip._vendor.packaging.utils import canonicalize_name
 
 from pip._internal.operations.prepare import make_abstract_dist
-
 from pip._internal.utils.misc import get_installed_distributions
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 

src/pip/_internal/req/req_install.py

@@ -18,8 +18,8 @@ from pip._vendor.packaging import specifiers
 from pip._vendor.packaging.markers import Marker
 from pip._vendor.packaging.requirements import InvalidRequirement, Requirement
 from pip._vendor.packaging.utils import canonicalize_name
-from pip._vendor.packaging.version import parse as parse_version
 from pip._vendor.packaging.version import Version
+from pip._vendor.packaging.version import parse as parse_version
 from pip._vendor.pkg_resources import RequirementParseError, parse_requirements
 
 from pip._internal import wheel

src/pip/_internal/resolve.py

@@ -18,7 +18,6 @@ from pip._internal.exceptions import (
     BestVersionAlreadyInstalled, DistributionNotFound, HashError, HashErrors,
     UnsupportedPythonVersion,
 )
-
 from pip._internal.req.req_install import InstallRequirement
 from pip._internal.utils.logging import indent_log
 from pip._internal.utils.misc import dist_in_usersite, ensure_dir

tests/data/src/withpyproject/setup.py

@@ -1,2 +1,3 @@
 from setuptools import setup
+
 setup(name='withpyproject', version='0.0.1')

tests/unit/test_check.py

@@ -2,6 +2,7 @@
 """
 
 import mock
+
 from pip._internal.operations import check
 
 

tests/unit/test_unit_outdated.py

@@ -3,7 +3,6 @@ import os
 import sys
 from contextlib import contextmanager
 
-
 import freezegun
 import pretend
 import pytest