Address linting failures.

Author: katzdm

src/pip/_internal/cli/cmdoptions.py

@@ -30,7 +30,7 @@
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
 if MYPY_CHECK_RUNNING:
-    from typing import Any, Callable, Dict, Optional, Tuple
+    from typing import Any, Callable, Dict, List, Optional, Tuple
     from optparse import OptionParser, Values
     from pip._internal.cli.parser import ConfigOptionParser
 
@@ -604,6 +604,8 @@ def add_target_python_options(cmd_opts):
 
 
 def make_target_python(options):
+    # type: (Values) -> TargetPython
+
     # abi can be a comma-separated list of values.
     abis = options.abi  # type: Optional[List[str]]
     if options.abi:
@@ -614,7 +616,6 @@ def make_target_python(options):
     if options.platform:
         platforms = options.platform.split(',')
 
-    # type: (Values) -> TargetPython
     target_python = TargetPython(
         platforms=platforms,
         py_version_info=options.python_version,