Upload Image with Twython

twythonupload.py

    def updateProfileImage(self, filename, version = 1):
        """ updateProfileImage(filename)

            Updates the authenticating user's profile image (avatar).

            Parameters:
                image - Required. Must be a valid GIF, JPG, or PNG image of less than 700 kilobytes in size. Images with width larger than 500 pixels will be scaled down.
                version (number) - Optional. API version to request. Entire Twython class defaults to 1, but you can override on a function-by-function or class basis - (version=2), etc.
        """
        params = {
            'oauth_version': "1.0",
            'oauth_nonce': oauth.generate_nonce(length=41),
            'oauth_timestamp': int(time.time()),
        }

        #create a fake request with your upload url and parameters
        faux_req = oauth.Request(method='POST', url='http://api.twitter.com/1/account/update_profile_image.json', parameters=params)
    
        #sign the fake request.
        signature_method = oauth.SignatureMethod_HMAC_SHA1()
        faux_req.sign_request(signature_method, self.consumer, self.token)
    
        #create a dict out of the fake request signed params
        params = dict(parse_qsl(faux_req.to_postdata()))
        self.headers.update(faux_req.to_header(realm='http://api.twitter.com'))

        print self.headers
        import requests
        r = requests.post('http://api.twitter.com/1/account/update_profile_image.json', files={'image':('avvy100411.jpg', open(filename, 'rb'))}, headers=self.headers)
        print r