urllib和urllib2在python2以及python3的區別

1.python2

import urllib

import urllib2

共同點：均可以直接用urlopen（‘url’）請求頁面

不一樣點：

urllib有urlencode（dict）和unquote（）進行編碼和解碼

對於error：

try:
    response = urllib2.urlopen("http://pythonsite.com/111341.html")
except urllib2.HTTPError as e:
    print(e.reason)
    print(e.code)
    print(e.headers)
except urllib2.URLError as e:
    print(e.reason)

else:
    print("reqeust successfully")

2.python3

請求頁面：urllib.request.urlopen（‘url’）

對於error：

from urllib import request,error try: response = request.urlopen("http://pythonsite.com/113211.html") except error.HTTPError as e: print(e.reason) print(e.code) print(e.headers) except error.URLError as e: print(e.reason) else: print("reqeust successfully")