这取决于您在引用导入时希望如何访问它。

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屏蔽内置插件，您还可以在导入时自己为事物起别名：

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