我正在尝试使用Google App Engine，并决定使用Yelp API作为我的数据源。为了进行身份验证，我需要一些密钥和令牌到Yelp服务器。问题在于回应。我一直在说：
TypeError：期望的httplib.Message，得到
我不知道为什么。除Google App Engine外，我还在使用rauth库。
这是我的代码：
import webapp2
import rauth
from webapp2_extras import json
class Locations(webapp2.RequestHandler):
def get(self):
params = {}
params["term"] = "restaurant"
params["location"] = "Denver"
params["limit"] = "10"
consumer_key = "key here"
consumer_secret = "secret here"
token = "token here"
token_secret = "secret here"
session = rauth.OAuth1Session(
consumer_key = consumer_key
,consumer_secret = consumer_secret
,access_token = token
,access_token_secret = token_secret)
info = session.get("http://api.yelp.com/v2/search", params=params)
self.response.write(json.encode(info))
app = webapp2.WSGIApplication([
('/locations', Locations),], debug=True)
任何人都可以帮助我吗？我期待在这里收到一些JSON，所以我可以将它发送到我的Javascript。
以下是我在终端中收到的完整错误：提前致谢！
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webapp2-2.3/webapp2.py", line 1511, in __call__
rv = self.handle_exception(request, response, e)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webapp2-2.3/webapp2.py", line 1505, in __call__
rv = self.router.dispatch(request, response)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webapp2-2.3/webapp2.py", line 1253, in default_dispatcher
return route.handler_adapter(request, response)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webapp2-2.3/webapp2.py", line 1077, in __call__
return handler.dispatch()
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webapp2-2.3/webapp2.py", line 547, in dispatch
return self.handle_exception(e, self.app.debug)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webapp2-2.3/webapp2.py", line 545, in dispatch
return method(*args, **kwargs)
File "/Library/WebServer/Documents/helloworld/helloworld.py", line 23, in get
info = session.get("http://api.yelp.com/v2/search", params=params)
File "/Library/WebServer/Documents/helloworld/lib/requests/sessions.py", line 480, in get
return self.request('GET', url, **kwargs)
File "/Library/WebServer/Documents/helloworld/lib/rauth/session.py", line 210, in request
return super(OAuth1Session, self).request(method, url, **req_kwargs)
File "/Library/WebServer/Documents/helloworld/lib/requests/sessions.py", line 468, in request
resp = self.send(prep, **send_kwargs)
File "/Library/WebServer/Documents/helloworld/lib/requests/sessions.py", line 576, in send
r = adapter.send(request, **kwargs)
File "/Library/WebServer/Documents/helloworld/lib/requests/adapters.py", line 370, in send
timeout=timeout
File "/Library/WebServer/Documents/helloworld/lib/requests/packages/urllib3/connectionpool.py", line 559, in urlopen
body=body, headers=headers)
File "/Library/WebServer/Documents/helloworld/lib/requests/packages/urllib3/connectionpool.py", line 390, in _make_request
assert_header_parsing(httplib_response.msg)
File "/Library/WebServer/Documents/helloworld/lib/requests/packages/urllib3/util/response.py", line 48, in assert_header_parsing
type(headers)))
TypeError: expected httplib.Message, got <type 'instance'>.
ERROR 2015-11-12 05:53:34,647 wsgi.py:279]
Traceback (most recent call last):
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/runtime/wsgi.py", line 267, in Handle
result = handler(dict(self._environ), self._StartResponse)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webapp2-2.3/webapp2.py", line 1519, in __call__
response = self._internal_error(e)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webapp2-2.3/webapp2.py", line 1511, in __call__
rv = self.handle_exception(request, response, e)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webapp2-2.3/webapp2.py", line 1505, in __call__
rv = self.router.dispatch(request, response)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webapp2-2.3/webapp2.py", line 1253, in default_dispatcher
return route.handler_adapter(request, response)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webapp2-2.3/webapp2.py", line 1077, in __call__
return handler.dispatch()
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webapp2-2.3/webapp2.py", line 547, in dispatch
return self.handle_exception(e, self.app.debug)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/lib/webapp2-2.3/webapp2.py", line 545, in dispatch
return method(*args, **kwargs)
File "/Library/WebServer/Documents/helloworld/helloworld.py", line 23, in get
info = session.get("http://api.yelp.com/v2/search", params=params)
File "/Library/WebServer/Documents/helloworld/lib/requests/sessions.py", line 480, in get
return self.request('GET', url, **kwargs)
File "/Library/WebServer/Documents/helloworld/lib/rauth/session.py", line 210, in request
return super(OAuth1Session, self).request(method, url, **req_kwargs)
File "/Library/WebServer/Documents/helloworld/lib/requests/sessions.py", line 468, in request
resp = self.send(prep, **send_kwargs)
File "/Library/WebServer/Documents/helloworld/lib/requests/sessions.py", line 576, in send
r = adapter.send(request, **kwargs)
File "/Library/WebServer/Documents/helloworld/lib/requests/adapters.py", line 370, in send
timeout=timeout
File "/Library/WebServer/Documents/helloworld/lib/requests/packages/urllib3/connectionpool.py", line 559, in urlopen
body=body, headers=headers)
File "/Library/WebServer/Documents/helloworld/lib/requests/packages/urllib3/connectionpool.py", line 390, in _make_request
assert_header_parsing(httplib_response.msg)
File "/Library/WebServer/Documents/helloworld/lib/requests/packages/urllib3/util/response.py", line 48, in assert_header_parsing
type(headers)))
TypeError: expected httplib.Message, got <type 'instance'>.
INFO 2015-11-12 05:53:34,653 module.py:794] default: "GET /locations HTTP/1.1" 500 -