python3 AttributeError: 'function' object has no attribute 'func_name'

AttributeError: 'function' object has no attribute 'func_name'

python2升级到python3报的错，

python3.0的函数没有func_name属性了，改成了__name__.

详见 官方文档：https://docs.python.org/3/whatsnew/3.0.html#miscellaneous-other-changes

• The function attributes named func_X have been renamed to use the __X__ form, freeing up these names in the function attribute namespace for user-defined attributes. To wit, func_closure, func_code, func_defaults, func_dict, func_doc, func_globals, func_name were renamed to __closure__, __code__, __defaults__, __dict__, __doc__, __globals__, __name__, respectively.

• __nonzero__() is now __bool__().