这取决于您在引用它时想要如何访问导入。

from urllib import request
# access request directly.
mine = request()

import urllib.request
# used as urllib.request
mine = urllib.request()

为了简单起见或避免掩盖内置函数，您还可以在导入时自己设置别名：

from os import open as open_
# lets you use os.open without destroying the 
# built in open() which returns file handles.