--- a/lib/python3.8/site-packages/pip/_internal/commands/configuration.py	Mon Jul 27 03:47:31 2020 -0400
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,233 +0,0 @@
-# The following comment should be removed at some point in the future.
-# mypy: disallow-untyped-defs=False
-
-import logging
-import os
-import subprocess
-
-from pip._internal.cli.base_command import Command
-from pip._internal.cli.status_codes import ERROR, SUCCESS
-from pip._internal.configuration import (
-    Configuration,
-    get_configuration_files,
-    kinds,
-)
-from pip._internal.exceptions import PipError
-from pip._internal.utils.misc import get_prog, write_output
-
-logger = logging.getLogger(__name__)
-
-
-class ConfigurationCommand(Command):
-    """Manage local and global configuration.
-
-        Subcommands:
-
-        list: List the active configuration (or from the file specified)
-        edit: Edit the configuration file in an editor
-        get: Get the value associated with name
-        set: Set the name=value
-        unset: Unset the value associated with name
-
-        If none of --user, --global and --site are passed, a virtual
-        environment configuration file is used if one is active and the file
-        exists. Otherwise, all modifications happen on the to the user file by
-        default.
-    """
-
-    ignore_require_venv = True
-    usage = """
-        %prog [<file-option>] list
-        %prog [<file-option>] [--editor <editor-path>] edit
-
-        %prog [<file-option>] get name
-        %prog [<file-option>] set name value
-        %prog [<file-option>] unset name
-    """
-
-    def __init__(self, *args, **kwargs):
-        super(ConfigurationCommand, self).__init__(*args, **kwargs)
-
-        self.configuration = None
-
-        self.cmd_opts.add_option(
-            '--editor',
-            dest='editor',
-            action='store',
-            default=None,
-            help=(
-                'Editor to use to edit the file. Uses VISUAL or EDITOR '
-                'environment variables if not provided.'
-            )
-        )
-
-        self.cmd_opts.add_option(
-            '--global',
-            dest='global_file',
-            action='store_true',
-            default=False,
-            help='Use the system-wide configuration file only'
-        )
-
-        self.cmd_opts.add_option(
-            '--user',
-            dest='user_file',
-            action='store_true',
-            default=False,
-            help='Use the user configuration file only'
-        )
-
-        self.cmd_opts.add_option(
-            '--site',
-            dest='site_file',
-            action='store_true',
-            default=False,
-            help='Use the current environment configuration file only'
-        )
-
-        self.parser.insert_option_group(0, self.cmd_opts)
-
-    def run(self, options, args):
-        handlers = {
-            "list": self.list_values,
-            "edit": self.open_in_editor,
-            "get": self.get_name,
-            "set": self.set_name_value,
-            "unset": self.unset_name
-        }
-
-        # Determine action
-        if not args or args[0] not in handlers:
-            logger.error("Need an action ({}) to perform.".format(
-                ", ".join(sorted(handlers)))
-            )
-            return ERROR
-
-        action = args[0]
-
-        # Determine which configuration files are to be loaded
-        #    Depends on whether the command is modifying.
-        try:
-            load_only = self._determine_file(
-                options, need_value=(action in ["get", "set", "unset", "edit"])
-            )
-        except PipError as e:
-            logger.error(e.args[0])
-            return ERROR
-
-        # Load a new configuration
-        self.configuration = Configuration(
-            isolated=options.isolated_mode, load_only=load_only
-        )
-        self.configuration.load()
-
-        # Error handling happens here, not in the action-handlers.
-        try:
-            handlers[action](options, args[1:])
-        except PipError as e:
-            logger.error(e.args[0])
-            return ERROR
-
-        return SUCCESS
-
-    def _determine_file(self, options, need_value):
-        file_options = [key for key, value in (
-            (kinds.USER, options.user_file),
-            (kinds.GLOBAL, options.global_file),
-            (kinds.SITE, options.site_file),
-        ) if value]
-
-        if not file_options:
-            if not need_value:
-                return None
-            # Default to user, unless there's a site file.
-            elif any(
-                os.path.exists(site_config_file)
-                for site_config_file in get_configuration_files()[kinds.SITE]
-            ):
-                return kinds.SITE
-            else:
-                return kinds.USER
-        elif len(file_options) == 1:
-            return file_options[0]
-
-        raise PipError(
-            "Need exactly one file to operate upon "
-            "(--user, --site, --global) to perform."
-        )
-
-    def list_values(self, options, args):
-        self._get_n_args(args, "list", n=0)
-
-        for key, value in sorted(self.configuration.items()):
-            write_output("%s=%r", key, value)
-
-    def get_name(self, options, args):
-        key = self._get_n_args(args, "get [name]", n=1)
-        value = self.configuration.get_value(key)
-
-        write_output("%s", value)
-
-    def set_name_value(self, options, args):
-        key, value = self._get_n_args(args, "set [name] [value]", n=2)
-        self.configuration.set_value(key, value)
-
-        self._save_configuration()
-
-    def unset_name(self, options, args):
-        key = self._get_n_args(args, "unset [name]", n=1)
-        self.configuration.unset_value(key)
-
-        self._save_configuration()
-
-    def open_in_editor(self, options, args):
-        editor = self._determine_editor(options)
-
-        fname = self.configuration.get_file_to_edit()
-        if fname is None:
-            raise PipError("Could not determine appropriate file.")
-
-        try:
-            subprocess.check_call([editor, fname])
-        except subprocess.CalledProcessError as e:
-            raise PipError(
-                "Editor Subprocess exited with exit code {}"
-                .format(e.returncode)
-            )
-
-    def _get_n_args(self, args, example, n):
-        """Helper to make sure the command got the right number of arguments
-        """
-        if len(args) != n:
-            msg = (
-                'Got unexpected number of arguments, expected {}. '
-                '(example: "{} config {}")'
-            ).format(n, get_prog(), example)
-            raise PipError(msg)
-
-        if n == 1:
-            return args[0]
-        else:
-            return args
-
-    def _save_configuration(self):
-        # We successfully ran a modifying command. Need to save the
-        # configuration.
-        try:
-            self.configuration.save()
-        except Exception:
-            logger.error(
-                "Unable to save configuration. Please report this as a bug.",
-                exc_info=1
-            )
-            raise PipError("Internal Error.")
-
-    def _determine_editor(self, options):
-        if options.editor is not None:
-            return options.editor
-        elif "VISUAL" in os.environ:
-            return os.environ["VISUAL"]
-        elif "EDITOR" in os.environ:
-            return os.environ["EDITOR"]
-        else:
-            raise PipError("Could not determine editor to use.")