如何为导入的全局变量赋值?

这么多年了,我还是不喜欢用Python来搜索globals。我的问题出现在一个uWSGI应用程序中,在哪里 init() BROWSER = webdriver.Firefox() 申报后 global BROWSER

globaltest.py :

#!/usr/bin/python3
'''
Test of keyword `global`
'''
GLOBALTEST = None

def init():
    global GLOBALTEST
    GLOBALTEST = 'Something'

if __name__ == '__main__':
    print('before init: GLOBALTEST', GLOBALTEST)
    init()
    print(' after init: GLOBALTEST', GLOBALTEST)

执行:

jcomeau@bendergift:/tmp$ ./globaltest.py 
before init: GLOBALTEST None
 after init: GLOBALTEST Something
jcomeau@bendergift:/tmp$ python3
Python 3.7.3 (default, Apr  3 2019, 05:39:12) 
[GCC 8.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from globaltest import *
>>> GLOBALTEST
>>> init()
>>> GLOBALTEST
>>>