__init__.py 文件源码

def resolve_command(self, ctx, args):
        """
        Overrides clicks ``resolve_command`` method
        and appends *Did you mean ...* suggestions
        to the raised exception message.
        """
        try:
            return super(DYMMixin, self).resolve_command(ctx, args)
        except click.exceptions.UsageError as error:
            error_msg = str(error)
            original_cmd_name = click.utils.make_str(args[0])
            matches = difflib.get_close_matches(original_cmd_name,
                                                self.list_commands(ctx), self.max_suggestions, self.cutoff)
            if matches:
                error_msg += '\n\nDid you mean one of these?\n    %s' % '\n    '.join(matches)  # pylint: disable=line-too-long

            raise click.exceptions.UsageError(error_msg, error.ctx)