Python _ast 模块，Gt() 实例源码

def visit_Compare(self, node):
        """
        :type node: _ast.FunctionDef
        """

        is_lambda_def = len(node.ops) == 1\
                        and type(node.ops[0]) is _ast.Gt \
                        and (type(node.left) is _ast.Tuple or type(node.left) is _ast.Name) \
                        and all(map(lambda t: type(t) == _ast.Name, getattr(node.left, 'elts', [])))

        if not is_lambda_def:
            return node

        arguments = _transform_function_arguments(node.left)
        function_body = node.comparators[0]

        lambda_ast_transform = ast.Lambda(args=arguments,
                                          body=function_body,
                                          lineno=node.lineno,
                                          col_offset=node.col_offset)
        return lambda_ast_transform