How do I properly install httplib2 on Google App Engine?

Question

I copied my httplib2 directory into my GAE project, and now I'm getting the following error:

line 64, in <module> _ssl_wrap_socket = ssl.wrap_socket

Is this an issue with Google App Engine, or did I somehow install my httplib2 incorrectly?

Full error dump, as request(it's big!):

--> --> -->
Traceback (most recent call last):
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 4053, in _HandleRequest
    self._Dispatch(dispatcher, self.rfile, outfile, env_dict)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 3977, in _Dispatch
    base_env_dict=env_dict)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 588, in Dispatch
    base_env_dict=base_env_dict)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 3050, in Dispatch
    self._module_dict)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2954, in ExecuteCGI
    reset_modules = exec_script(handler_path, cgi_path, hook)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2834, in ExecuteOrImportScript
    exec module_code in script_module.__dict__
  File "C:\Users\quaunaut\Documents\Aptana Studio 3 Workspace\qushoutout\src\main.py", line 25, in <module>
    import twitter as twitter
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 1505, in Decorate
    return func(self, *args, **kwargs)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2450, in load_module
    return self.FindAndLoadModule(submodule, fullname, search_path)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 1505, in Decorate
    return func(self, *args, **kwargs)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2339, in FindAndLoadModule
    description)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 1505, in Decorate
    return func(self, *args, **kwargs)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2282, in LoadModuleRestricted
    description)
  File "C:\Users\quaunaut\Documents\Aptana Studio 3 Workspace\qushoutout\src\twitter.py", line 65, in <module>
    import oauth2 as oauth
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 1505, in Decorate
    return func(self, *args, **kwargs)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2450, in load_module
    return self.FindAndLoadModule(submodule, fullname, search_path)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 1505, in Decorate
    return func(self, *args, **kwargs)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2339, in FindAndLoadModule
    description)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 1505, in Decorate
    return func(self, *args, **kwargs)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2282, in LoadModuleRestricted
    description)
  File "C:\Users\quaunaut\Documents\Aptana Studio 3 Workspace\qushoutout\src\oauth2\__init__.py", line 32, in <module>
    import httplib2
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 1505, in Decorate
    return func(self, *args, **kwargs)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2450, in load_module
    return self.FindAndLoadModule(submodule, fullname, search_path)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 1505, in Decorate
    return func(self, *args, **kwargs)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2339, in FindAndLoadModule
    description)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 1505, in Decorate
    return func(self, *args, **kwargs)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 2282, in LoadModuleRestricted
    description)
  File "C:\Users\quaunaut\Documents\Aptana Studio 3 Workspace\qushoutout\src\httplib2\__init__.py", line 64, in <module>
    _ssl_wrap_socket = ssl.wrap_socket
AttributeError: 'module' object has no attribute 'wrap_socket'

Still having this issue. About the only thing I can think of that could possibly be causing this is my machine running Python 2.7; Is it possible that is causing the issue?

Answer 1

As a workaround:

Can you use Google App Engine SDK 1.4.3 (this looks like a 1.5.0 regression).

Or force httplib2 fallback on httplib.FakeSocket with:

import sys
sys.modules['ssl'] = None
import httplib2

A new issue has been filled there: http://code.google.com/p/googleappengine/issues/detail?id=5064

It looks already fixed in httplib2 side: http://code.google.com/p/httplib2/source/detail?r=cf721c1693a68e9438899be3d78acccae6ab0e30#

Answer 2

The AppEngine sandbox doesn't allow access to a sockets API, for an http library to work on GAE it would have to wrap urllib (which in turn wraps the url_fetch API).

EDIT Looks like httplib2 should work so I guess you just need to ensure your paths are setup correctly.

See this question

Answer 3

This Blog claims to fix the GAE issues. I haven't tried it yet, but sounds right.