urllib2を使ってファイルをアップロードする

Question

私はpythonには新しく、urllib2を使ってファイルをアップロードするコードを書いていますが、動作させることはできません。

ここでコードは次のとおりです。MultipartPostHandlerすべてが今、正常に動作している

class Get(object): 
    handlers = list() 
    def __init__(self,url): 
     self.url = url 
     self.request = urllib2.Request(url) 
     self.request.add_header('User-Agent',"Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13") 

    def auth(self,username,password): 
     pass_mgr = urllib2.HTTPPasswordMgrWithDefaultRealm() 
     pass_mgr.add_password(None, self.url, username, password) 
     handler = urllib2.HTTPBasicAuthHandler(pass_mgr) 
     self._add_handler(handler) 

    def perform(self): 
     try: 
      opener = self._opener() 
      res = opener.open(self.request) 
      to_return = { 
       'code': res.code, 
       'contents': res.read(), 
       'url': res.geturl(), 
       'headers': dict(res.info()) 
      } 
     except urllib2.URLError as e: 
      if hasattr(e, 'reason'): 
       print 'Error accessing the server.' 
       print 'Reason: ', e.reason 
      elif hasattr(e, 'code'): 
       print 'The server couldn\'t fulfill the request.' 
       print e 
     else: 
      return to_return 

    def _add_handler(self,handler): 
     self.handlers.append(handler) 

    def _opener(self): 
     return urllib2.build_opener(*self.handlers) 

class Multipart(object): 
    def __init__(self,url): 
     super(Multipart,self).__init__(url) 
     self.data = list() 

    def perform(self): 
     b = choose_boundary() 

     tmp = "".join(map(lambda x: "--%s \r\n %s" % (b,x), self.data)) 
     tmp += "--%s--\r\n" % b 
     self.request.add_data(tmp) 
     content_type = 'multipart/form-data; boundary=%s' % b 
     self.request.add_unredirected_header('Content-Type', content_type) 
     #self.request.add_header("Content-Type","multipart/form-data, boundary=%s" % b) 
     return super(HTTP.Multipart,self).perform() 

    def set_data(self,data,file = None): 
     for i in data: 
      if file: 
       self.data.append(self._encode_file(i,**data[i])) 
      else: 
       self.data.append(self._encode_text(i,data[i])) 

    def _encode_text(self,key,value): 
     return "Content-Disposition: form-data; name=\"%s\"\r\n\r\n%s\r\n" % (key, value) 

    def _encode_file(self,key,path,filename=None,mime_type=None): 
     if not exists(path): 
      raise RuntimeError('%s not found' % path) 

     fname = filename or basename(path) 
     mime = mime_type or guess_type(path)[0] or 'application/octet-stream' 
     size = getsize(path) 
     content = "" 
     with open(path,'rb') as fobj: 
      content = fobj.read(size) 

     converted_text = "Content-Disposition: form-data; name=\"%s\";  filename=\"%s\"\r\n" % (key,fname) 
     converted_text += "Content-Transfer-Encoding: binary\r\n" 
     converted_text += "Content-Type: %s \r\n" % mime 
     converted_text += "Content-Length: %s \r\n" % size 
     converted_text += "\r\n %s \r\n" % content 

     return converted_text 

Answer 1

感謝。

class Post(Get): # inherits the Get class above 
    def __init__(self,url,data,multipart=False): 
     super(HTTP.Post,self).__init__(url) 
     if multipart: 
      from MultipartPostHandler import MultipartPostHandler 
      self._add_handler(MultipartPostHandler) 
      self.request.add_data(data) 
     else: 
      self.request.add_data(urlencode(data))