Python3.6 报错AttributeError: module 'urllib' has no attribute 'Request'

代码
import urllib
url = 'http://www.xxxxxx.com/login'
postdata = {'username': 'qiye', 'passsword': 'qiye_pass'}
data = urllib.parse.urlencode(postdata)
req = urllib.Request(url, data)
response = urllib.request.urlopen(req)
html = response.read()报错
AttributeError: module 'urllib' has no attribute 'Request'

解决方案
更改urllib.Request为urllib.Request为urllib.request.Request即可