为毛我的程序在终端可以运行，但是在py文件中无法运行

行走的小布鞋

1. from urllib import urlopen
   
2. from urllib import urlencode
   
3. import re
   
4. 
   
5. wd = 'python'
   
6. wd = urlencode({'wd':wd})
   
7. url = "http://www.baidu.com" + wd
   
8. page = urlopen(url).read()
   
9. content = (page.decode('utf-8')).replace('\n', '').replace('\t', '')
   
10. 
    
11. title = re.findall(r'<h3 class="t".*?h3>', content)
    
12. title = [item[item.find('href =')+6:item.find('target=')] for item in title]
    
13. title = [item.replace(' ', '').replace('"', '') for item in title]
    
14. 
    
15. for item in title:
    
16.     print item

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如果我把以上代码一行行粘贴到终端，这个代码就可以运行，但是，如果我直接使用python file.py则提示错误，错误如下：

1. Traceback (most recent call last):
   
2.   File "url.py", line 8, in <module>
   
3.     page = urlopen(url).read()
   
4.   File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib.py", line 87, in urlopen
   
5.     return opener.open(url)
   
6.   File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib.py", line 213, in open
   
7.     return getattr(self, name)(url)
   
8.   File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/urllib.py", line 350, in open_http
   
9.     h.endheaders(data)
   
10.   File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 1038, in endheaders
    
11.     self._send_output(message_body)
    
12.   File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 882, in _send_output
    
13.     self.send(msg)
    
14.   File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 844, in send
    
15.     self.connect()
    
16.   File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 821, in connect
    
17.     self.timeout, self.source_address)
    
18.   File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/socket.py", line 557, in create_connection
    
19.     for res in getaddrinfo(host, port, 0, SOCK_STREAM):
    
20. IOError: [Errno socket error] [Errno 8] nodename nor servname provided, or not known

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我的python版本是2.7.13

jeppeter

回复 1# 行走的小布鞋

你的问题是网址，你可以把网址打印出来，就在

1. url = "http://www.baidu.com" + wd

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这一行下面打印url ,用这个输入浏览器，看可以吗？
你这里错了。

诸葛修勤

设备DNS不通？

bigapple2008

have you tried change the file name to other name? because file is the keyword...try abc.py

行走的小布鞋

回复 4# bigapple2008

谢谢您，我试试

行走的小布鞋

回复 5# cwd0204

谢谢您