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Direktori : /usr/lib/python3.8/site-packages/pip/_internal/commands/ |
Current File : //usr/lib/python3.8/site-packages/pip/_internal/commands/help.py |
# The following comment should be removed at some point in the future. # mypy: disallow-untyped-defs=False from __future__ import absolute_import from pip._internal.cli.base_command import Command from pip._internal.cli.status_codes import SUCCESS from pip._internal.exceptions import CommandError class HelpCommand(Command): """Show help for commands""" usage = """ %prog <command>""" ignore_require_venv = True def run(self, options, args): from pip._internal.commands import ( commands_dict, create_command, get_similar_commands, ) try: # 'pip help' with no args is handled by pip.__init__.parseopt() cmd_name = args[0] # the command we need help for except IndexError: return SUCCESS if cmd_name not in commands_dict: guess = get_similar_commands(cmd_name) msg = ['unknown command "%s"' % cmd_name] if guess: msg.append('maybe you meant "%s"' % guess) raise CommandError(' - '.join(msg)) command = create_command(cmd_name) command.parser.print_help() return SUCCESS