dist.py 文件源码

def _parse_command_opts(self, parser, args):
        # Remove --with-X/--without-X options when processing command args
        self.global_options = self.__class__.global_options
        self.negative_opt = self.__class__.negative_opt

        # First, expand any aliases
        command = args[0]
        aliases = self.get_option_dict('aliases')
        while command in aliases:
            src,alias = aliases[command]
            del aliases[command]    # ensure each alias can expand only once!
            import shlex
            args[:1] = shlex.split(alias,True)
            command = args[0]

        nargs = _Distribution._parse_command_opts(self, parser, args)

        # Handle commands that want to consume all remaining arguments
        cmd_class = self.get_command_class(command)
        if getattr(cmd_class,'command_consumes_arguments',None):
            self.get_option_dict(command)['args'] = ("command line", nargs)
            if nargs is not None:
                return []

        return nargs