python 2 下载博客论文报错

wyhy921

博文有7页，下载完第一页之后就报错，查不出问题

                               
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错误提示：

1. Traceback (most recent call last):
   
2.   File "1.py", line 33, in <module>
   
3.     content = urllib.urlopen(url[j]).read()
   
4.   File "/usr/lib/python2.7/urllib.py", line 87, in urlopen
   
5.     return opener.open(url)
   
6.   File "/usr/lib/python2.7/urllib.py", line 208, in open
   
7.     return getattr(self, name)(url)
   
8.   File "/usr/lib/python2.7/urllib.py", line 463, in open_file
   
9.     return self.open_local_file(url)
   
10.   File "/usr/lib/python2.7/urllib.py", line 477, in open_local_file
    
11.     raise IOError(e.errno, e.strerror, e.filename)
    
12. IOError: [Errno 2] No such file or directory: ''

复制代码

运行代码：

1. #!/usr/bin/python
   
2. #coding=utf-8
   
3. import urllib
   
4. import time
   
5. url = ['']*350
   
6. page = 1
   
7. link = 1
   
8. #循环7页
   
9. while page <= 7:
   
10.     con = urllib.urlopen('http://blog.sina.com.cn/s/articlelist_1191258123_0_'+str(page)+'.html').read()
    
11.     i = 0
    
12.     title = con.find(r'<a title=')
    
13.     href = con.find(r'href=',title)
    
14.     html = con.find(r'.html',href)
    
15.     #找到一页中的所有链接地址
    
16.     while title != -1 and href != -1 and html != -1 and i < 50:
    
17.         url[i] = con[href + 6:html + 5]
    
18.         print link,url[i]
    
19.         title = con.find(r'<a title=',html)
    
20.         href = con.find(r'href=',title)
    
21.         html = con.find(r'.html',href)
    
22.         i = i + 1
    
23.         link = link + 1
    
24.     else:
    
25.         print page,'finish end'
    
26.     page = page + 1
    
27. else:
    
28.     print 'all finish'
    
29. #读取并写入所有页面内容
    
30.     j = 0
    
31.     while j < 350:
    
32.         content = urllib.urlopen(url[j]).read()
    
33.         open(r'hanhan/'+url[j][-26:],'w+').write(content)
    
34.         print 'downloading',url[j]
    
35.         j = j + 1
    
36.         #time.sleep(20)
    
37.     else:
    
38.         print 'download finish'

复制代码

Reed

no such file or directory: ''
可能是第一次的url逻辑 第二次不适用，比如'hanhan/'+url[j][-26:]    重点检查一下

我大概看了一眼，整体逻辑太乱了， 你应该包装成几个函数，比如：
def get_html()
def get_blog()
def save_txt()
然后在主程序里循环执行上面的3个函数，这样就优雅很多嘛