saving dependency work

lib/python3.9/site-packages/pip/_internal/commands/freeze.py

@@ -12,7 +12,7 @@ from pip._internal.utils.compat import stdlib_pkgs
 from pip._internal.utils.deprecation import deprecated
 from pip._internal.utils.typing import MYPY_CHECK_RUNNING
 
-DEV_PKGS = {'pip', 'setuptools', 'distribute', 'wheel', 'pkg-resources'}
+DEV_PKGS = {"pip", "setuptools", "distribute", "wheel", "pkg-resources"}
 
 if MYPY_CHECK_RUNNING:
     from optparse import Values
@@ -33,47 +33,55 @@ class FreezeCommand(Command):
     def add_options(self):
         # type: () -> None
         self.cmd_opts.add_option(
-            '-r', '--requirement',
-            dest='requirements',
-            action='append',
+            "-r",
+            "--requirement",
+            dest="requirements",
+            action="append",
             default=[],
-            metavar='file',
+            metavar="file",
             help="Use the order in the given requirements file and its "
-                 "comments when generating output. This option can be "
-                 "used multiple times.")
+            "comments when generating output. This option can be "
+            "used multiple times.",
+        )
         self.cmd_opts.add_option(
-            '-f', '--find-links',
-            dest='find_links',
-            action='append',
+            "-f",
+            "--find-links",
+            dest="find_links",
+            action="append",
             default=[],
-            metavar='URL',
-            help='URL for finding packages, which will be added to the '
-                 'output.')
+            metavar="URL",
+            help="URL for finding packages, which will be added to the " "output.",
+        )
         self.cmd_opts.add_option(
-            '-l', '--local',
-            dest='local',
-            action='store_true',
+            "-l",
+            "--local",
+            dest="local",
+            action="store_true",
             default=False,
-            help='If in a virtualenv that has global access, do not output '
-                 'globally-installed packages.')
+            help="If in a virtualenv that has global access, do not output "
+            "globally-installed packages.",
+        )
         self.cmd_opts.add_option(
-            '--user',
-            dest='user',
-            action='store_true',
+            "--user",
+            dest="user",
+            action="store_true",
             default=False,
-            help='Only output packages installed in user-site.')
+            help="Only output packages installed in user-site.",
+        )
         self.cmd_opts.add_option(cmdoptions.list_path())
         self.cmd_opts.add_option(
-            '--all',
-            dest='freeze_all',
-            action='store_true',
-            help='Do not skip these packages in the output:'
-                 ' {}'.format(', '.join(DEV_PKGS)))
+            "--all",
+            dest="freeze_all",
+            action="store_true",
+            help="Do not skip these packages in the output:"
+            " {}".format(", ".join(DEV_PKGS)),
+        )
         self.cmd_opts.add_option(
-            '--exclude-editable',
-            dest='exclude_editable',
-            action='store_true',
-            help='Exclude editable package from output.')
+            "--exclude-editable",
+            dest="exclude_editable",
+            action="store_true",
+            help="Exclude editable package from output.",
+        )
         self.cmd_opts.add_option(cmdoptions.list_exclude())
 
         self.parser.insert_option_group(0, self.cmd_opts)
@@ -112,5 +120,5 @@ class FreezeCommand(Command):
         )
 
         for line in freeze(**freeze_kwargs):
-            sys.stdout.write(line + '\n')
+            sys.stdout.write(line + "\n")
         return SUCCESS