Python httplib2.Http不發送發佈參數

Question

我一直在嘗試使用httplib2 Http類向Twilio發出API請求，無論我如何設置請求，它都不會發送我的發佈數據。我知道這一點，因爲我發佈到本地URL並且帖子參數是空的。這裏是我的代碼：

_TWILIO_URL = 'https://api.twilio.com/2010-04-01/Accounts/%s/%s' 
class Api(object): 
    ''' 
    A Python interface to the Twilio API 
    ''' 

    def __init__(self, AccountSid, AuthToken, From): 
     self.AccountSid = AccountSid 
     self.AuthToken = AuthToken 
     self.From = From 

    def _get_from(self, From): 
     """Use the provided From number or the one defined on initialization""" 
     if From: 
      return From 
     else: 
      return self.From 

    def call(self, To, Url, From=None): 
     """Sends a request to Twilio having it call a number; the provided URL will indicate how to handle the call""" 
     url = _TWILIO_URL % (self.AccountSid, 'Calls') 
     data = dict(From=self._get_from(From), To=To, Url=Url) 
     return self.request(url, body=urlencode(data)) 

    def request(self, url, method='POST', body=None, headers={'content-type':'text/plain'}): 
     """Send the actual request""" 
     h = Http() 
     h.add_credentials(self.AccountSid, self.AuthToken) 
     resp, content = h.request(url, method=method, body=body, headers=headers) 

     print content 

     if resp['status'] == '200': 
      return loads(content) 
     else: 
      raise TwilioError(resp['status'], content) 

    def sms(self, To, Body, From=None): 
     """Sends a request to Twilio having it call a number; the provided URL will indicate how to handle the call""" 
     url = _TWILIO_URL % (self.AccountSid, 'SMS/Messages') 
     data = dict(From=self._get_from(From), To=To, Body=Body) 
     return self.request(url, body=urlencode(data)) 

我找不到任何谷歌談論故障排除

Answer 1

事實證明，在「內涵式」已被設置爲「應用程序/ x-WWW的形式-urlencoded」。如果有人知道爲什麼，請告訴我。

Answer 2

Twilio提到這一要求在their API docs concerning POST requests：

但一定要在HTTP Content-Type頭設置爲
「應用程序/ x-WWW的形式，進行了urlencoded」 你的要求，如果你是 寫你自己的客戶端。