NameError：全局名称未使用另一个 .py 文件中定义的全局变量定义

Question

My code looks like this:

config.py

global var
var = None

file1.py

from config import *

def foo1():
   global var
   var = <object>

def foo2():
   var.doWork1()  # this works

file2.py

from config import *

def foo3():
   var.doWork2() # this throws global name 'var' is not defined

Why am I not able to access var in the second module?

Answer 1

The solution was not to use global.

Instead of doing

from config import *

I replaced it with

import config

And then accessed var via config.var

This worked.