Error when using oauthlib 0.6.3

[adrianmo]

Error: argument of type 'NoneType' is not iterable: #012Traceback (most recent call last):#012 File "/home/swift/swift/swift/common/middleware/catch_errors.py", line 37, in handle_request#012 resp = self._app_call(env)#012 File "/home/swift/swift/swift/common/wsgi.py", line 388, in _app_call#012 resp = self.app(env, self._start_response)#012 File "/home/swift/swift/swift/common/middleware/healthcheck.py", line 57, in call#012 return self.app(env, start_response)#012 File "/home/swift/swift/swift/common/middleware/proxy_logging.py", line 268, in call#012 iterable = self.app(env, my_start_response)#012 File "/home/swift/swift/swift/common/middleware/memcache.py", line 67, in call#012 return self.app(env, start_response)#012 File "/home/swift/swift/swift/common/swob.py", line 1188, in _wsgify_self#012 return func(self, Request(env))(env, start_response)#012 File "/home/swift/swift/swift/common/middleware/slo.py", line 458, in call#012 return self.app(env, start_response)#012 File "/home/swift/swift/swift/common/middleware/ratelimit.py", line 266, in call#012 return self.app(env, start_response)#012 File "/home/swift/swift/swift/common/middleware/crossdomain.py", line 81, in call#012 return self.app(env, start_response)#012 File "/usr/local/lib/python2.7/dist-packages/python_keystoneclient-0.9.0-py2.7.egg/keystoneclient/middleware/auth_token.py", line 686, in call#012 return self.app(env, start_response)#012 File "/home/swift/swift/swift/common/middleware/keystoneauth.py", line 116, in call#012 return self.app(environ, start_response)#012 File "build/bdist.linux-x86_64/egg/stacksync_auth_swift/auth.py", line 67, in call#012 return self.app(environ, start_response)#012 File "/home/swift/swift/swift/common/middleware/staticweb.py", line 460, in call#012 return self.app(env, start_response)#012 File "/home/swift/swift/swift/common/swob.py", line 1188, in _wsgify_self#012 return func(self, Request(env))(env, start_response)#012 File "/home/swift/swift/swift/common/swob.py", line 1188, in _wsgify_self#012 return func(self, Request(env))(env, start_response)#012 File "/home/swift/swift/swift/common/middleware/proxy_logging.py", line 268, in call#012 iterable = self.app(env, my_start_response)#012 File "/home/swift/swift/swift/common/swob.py", line 1188, in _wsgify_self#012 return func(self, Request(env))(env, start_response)#012 File "build/bdist.linux-x86_64/egg/stacksync_api_swift/api.py", line 23, in call#012 response = self.authorize(req)#012 File "build/bdist.linux-x86_64/egg/stacksync_api_swift/api.py", line 53, in authorize#012 resp = req.environ'swift.authorize'#012 File "build/bdist.linux-x86_64/egg/stacksync_auth_swift/auth.py", line 74, in authorize#012 response = self.__request_token(req)#012 File "build/bdist.linux-x86_64/egg/stacksync_auth_swift/auth.py", line 87, in __request_token#012 headers=req.headers)#012 File "build/bdist.linux-x86_64/egg/oauthlib/oauth1/rfc5849/endpoints/request_token.py", line 95, in create_request_token_response#012 request = self._create_request(uri, http_method, body, headers)#012 File "build/bdist.linux-x86_64/egg/oauthlib/oauth1/rfc5849/endpoints/base.py", line 73, in _create_request#012 CONTENT_TYPE_FORM_URLENCODED in headers["Content-Type"]):#012TypeError: argument of type 'NoneType' is not iterable (txn: tx688d7ba74d4c4284ba268-00539f2d80)