我希望在美味派中使用 OAuthAuthentication。在我的 ModelResource 中，我这样做：（仅显示相关部分）
`from tastypie.authentication import OAuthAuthentication
class FooResource(ModelResource):
class Meta:
authentication = OAuthAuthentication()`
我收到一条错误消息：无法导入“python-oauth2”包。与“OAuthAuthentication”类一起使用是必需的。
在此之前，我进行了 python-oauth（下）的 pip 安装，但随后，它继续上面的抱怨。我是否需要在我的资源或其他任何地方做任何其他事情来明确导入它？
`pip install -r http://code.daaku.org/python-oauth/reqs
Obtaining urlencoding from git+git://github.com/nshah/python-urlencoding.git#egg=urlencoding (from -r http://code.daaku.org/python-oauth/reqs (line 1))
Cloning git://github.com/nshah/python-urlencoding.git to ./src/urlencoding
Running setup.py egg_info for package urlencoding
Obtaining oauth from git+git://github.com/nshah/python-oauth.git#egg=oauth (from -r http://code.daaku.org/python-oauth/reqs (line 2))
Cloning git://github.com/nshah/python-oauth.git to ./src/oauth
Running setup.py egg_info for package oauth
Requirement already satisfied (use --upgrade to upgrade): distribute in /usr/lib/python2.6/site-packages (from urlencoding->-r http://code.daaku.org/python-oauth/reqs (line 1))
Downloading/unpacking setuptools-git (from urlencoding->-r http://code.daaku.org/python-oauth/reqs (line 1))
Downloading setuptools-git-0.4.2.tar.gz
Running setup.py egg_info for package setuptools-git
Installing collected packages: urlencoding, oauth, setuptools-git
Running setup.py develop for urlencoding
Creating /usr/lib/python2.6/site-packages/urlencoding.egg-link (link to .)
Adding urlencoding 0.0.1 to easy-install.pth file
Installed /usr/lib/python2.6/site-packages/tastypie/src/urlencoding
Running setup.py develop for oauth
Creating /usr/lib/python2.6/site-packages/oauth.egg-link (link to .)
Adding oauth 0.0.1 to easy-install.pth file
Installed /usr/lib/python2.6/site-packages/tastypie/src/oauth
Running setup.py install for setuptools-git
Successfully installed urlencoding oauth setuptools-git
Cleaning up...`