蟒蛇机械化文件上传UnicodeDecode错误

Question

所以我有一个小脚本，我想用一些PDF文件上传到我的引文站点的选择题（citeulike.org）

事情是它不工作。它这样做是：

so want to upload /Users/willwade/Dropbox/Papers/price_promoting_643127.pdf to 12589610 
Traceback (most recent call last): 
    File "citeuupload.py", line 167, in <module> 
    cureader.parseUserBibTex() 
    File "citeuupload.py", line 160, in parseUserBibTex 
    self.uploadFileToCitation(b['citeulike-article-id'],self.localpapers+fileorfalse) 
    File "citeuupload.py", line 138, in uploadFileToCitation 
    resp = self.browser.submit() 
    File "build/bdist.macosx-10.8-intel/egg/mechanize/_mechanize.py", line 541, in submit 
    File "build/bdist.macosx-10.8-intel/egg/mechanize/_mechanize.py", line 203, in open 
    File "build/bdist.macosx-10.8-intel/egg/mechanize/_mechanize.py", line 230, in _mech_open 
    File "build/bdist.macosx-10.8-intel/egg/mechanize/_opener.py", line 193, in open 
    File "build/bdist.macosx-10.8-intel/egg/mechanize/_urllib2_fork.py", line 344, in _open 
    File "build/bdist.macosx-10.8-intel/egg/mechanize/_urllib2_fork.py", line 332, in _call_chain 
    File "build/bdist.macosx-10.8-intel/egg/mechanize/_urllib2_fork.py", line 1142, in http_open 
    File "build/bdist.macosx-10.8-intel/egg/mechanize/_urllib2_fork.py", line 1115, in do_open 
    File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 955, in request 
    self._send_request(method, url, body, headers) 
    File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 989, in _send_request 
    self.endheaders(body) 
    File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 951, in endheaders 
    self._send_output(message_body) 
    File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/httplib.py", line 809, in _send_output 
    msg += message_body 
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 544: ordinal not in range(128) 

，代码：

def uploadFileToCitation(self,artid,file): 
    print 'so want to upload', file, ' to ', artid 
    self.browser.open('http://www.citeulike.org/user/'+cUser+'/article/'+artid) 
    self.browser.select_form(name="fileupload_frm") 
    self.browser.form.add_file(open(file, 'rb'), 'application/pdf', file, name='file') 
    try: 
     resp = self.browser.submit() 
     self.wait_for_api_limit() 
    except mechanize.HTTPError, e: 
     print 'error' 
     print e.getcode() 
     print resp.read() 
     exit() 

NB：我可以看到它正在读取的文件中正确（和它确实存在）。另外请注意，我在其他地方做这个

self.browser = mechanize.Browser() 
    self.browser.set_handle_robots(False) 
    self.browser.addheaders = [ 
     ("User-agent", 'me@me.com citeusyncpy/1.0'), 
    ] 

Full code is here

Answer 1

尝试查看此similar question。

To clarify, the message is constructed in httplib from the method, URL, headers, etc. If any of these is Unicode, the whole string gets converted to Unicode (I presume this is normal Python behavior). Then if you try to append a UTF-8 string you get the error I described in the original question...

从它看起来与编码，适当的标题可以解决问题。

你也可以检查这个issue。