solution.py 文件源码

def check_arity(self, **kwargs):
        """
           Inspect the code for too many arguments per
           function/method.
        """
        try:
            max_arity = kwargs['max_arity']
        except KeyError:
            return
        node = self.parsed_code.body[0]
        if not isinstance(node, ast.FunctionDef):
            return
        arity = len(node.args.args)
        if arity > max_arity:
            line_number = node.lineno
            self.issues[line_number].add(
                self.code_errors.too_many_arguments(arity, max_arity)
            )