python urllib.request.urlopen报错
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悬赏园豆：10
[待解决问题]
import urllib.request
response = urllib.request.urlopen('http://www.python.org')
执行报错：
File "C:\Users\yasin\AppData\Local\Programs\Python\Python37\lib\urllib\request.py", line 489, in add_handler
bisect.insort(self.handlers, handler)
AttributeError: module 'bisect' has no attribute 'insort'
