python3中使用 urllib 出问题
因为我的python版本是3.6的，所以引入的是 import urllib.request
然后使用 response = urllib.request.urllopen(url)一直出问题，这是怎么回事呢。
import urllib.request import http.cookiejar url = "www.baidu.com" #--------------方法一-------------- #获取地址内容 response3 = urllib.request.urlopen(url) #判断状态码等于200成功 print (response3.getcode()) #读取获取的内容 cont = response3.read() print (cont)
问题提示：
Traceback (most recent call last):
File "/Users/carol/www/Python/urllib2DownloadStyle.py", line 9, in <module>
response3 = urllib.request.urlopen(url)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 223, in urlopen
return opener.open(url, data, timeout)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 511, in open
req = Request(fullurl, data)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 329, in __init__
self.full_url = url
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 355, in full_url
self._parse()
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 384, in _parse
raise ValueError("unknown url type: %r" % self.full_url)
ValueError: unknown url type: 'www.baidu.com'
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