在我这里是这样的：
Traceback (most recent call last):
File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/webapp/
__init__.py", line 515, in __call__
handler.get(*groups)
File "/base/data/home/apps/v2ex/1.346696433518949076/
main.py", line 830, in get
response = urlfetch.fetch(fts, headers = {"Authorization" : "Basic %s" % base64.b64encode(config.fts_username + ':' + config.fts_password)})
File "/base/python_runtime/python_lib/versions/1/google/appengine/api/
urlfetch.py", line 241, in fetch
return rpc.get_result()
File "/base/python_runtime/python_lib/versions/1/google/appengine/api/
apiproxy_stub_map.py", line 529, in get_result
return self.__get_result_hook(self)
File "/base/python_runtime/python_lib/versions/1/google/appengine/api/
urlfetch.py", line 331, in _get_fetch_result
raise DownloadError(str(err))
DownloadError: ApplicationError: 5