Mercurial > repos > guerler > hhblits
diff lib/python3.8/site-packages/pip/_internal/commands/help.py @ 0:9e54283cc701 draft
"planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
author | guerler |
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date | Mon, 27 Jul 2020 03:47:31 -0400 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lib/python3.8/site-packages/pip/_internal/commands/help.py Mon Jul 27 03:47:31 2020 -0400 @@ -0,0 +1,41 @@ +# 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