jupyter lab 错误： TypeError: required field "type_ignores" missing from Module

解决了：pip install --upgrade ipytho

类似 这里描述，import什么库、设置变量都不行。

https://stackoverflow.com/questions/63519761/python-typeerror-required-field-type-ignores-missing-from-module-in-jupyter

怎么都返回错误信息： 

TypeError                                 Traceback (most recent call last)
/usr/lib/python3.8/codeop.py in __call__(self, source, filename, symbol)
    134 
    135     def __call__(self, source, filename, symbol):
--> 136         codeob = compile(source, filename, symbol, self.flags, 1)
    137         for feature in _features:
    138             if codeob.co_flags & feature.compiler_flag:

TypeError: required field "type_ignores" missing from Module

jupyter lab 错误： TypeError: required field "type_ignores" missing from Module

原文：https://www.cnblogs.com/sunson7/p/15001534.html