python 测试启动是到ImportError错误,请高手帮我看下源码，pythonimporterror,各位好：我接手一个网站，

python 测试启动是到ImportError错误,请高手帮我看下源码，pythonimporterror,各位好：我接手一个网站，

各位好：
我接手一个网站，现在需要测试启动，目前我在虚拟环境中的软件如下（使用pip freeze查看）：

Flask==0.10.1Flask-Admin==1.0.7Flask-Auth==0.85Flask-OAuth==0.12Flask-SQLAlchemy==1.0Jinja2==2.7.2Mako==0.9.1Markdown==2.4MarkupSafe==0.19SQLAlchemy==0.9.4WTForms==1.0.5Werkzeug==0.9.4alembic==0.6.3argparse==1.2.1distribute==0.6.24httplib2==0.8ipython==1.2.1itsdangerous==0.24nose==1.3.0oauth2==1.5.211psycopg2==2.5.2wsgiref==0.1.2

但是，当我处理python main.py的时候，还是会报出如下错误：

homepage)duqi@Lenovo-G480:~/python/homepage$ python main.pyTraceback (most recent call last):  File "main.py", line 1, in <module>    from homepage import create_app  File "/home/duqi/python/homepage/homepage/__init__.py", line 2, in <module>    from homepage import views  File "/home/duqi/python/homepage/homepage/views/__init__.py", line 1, in <module>    from home import blueprint_home  File "/home/duqi/python/homepage/homepage/views/home.py", line 6, in <module>    from homepage.helper import render_template, generator_hash  File "/home/duqi/python/homepage/homepage/helper.py", line 5, in <module>    from flask_oauth import OauthImportError: cannot import name Oauth

并且，在helper.py的第5行代码是：

from flask_oauth import Oauth

from flask_oauth import OAuth

编橙之家文章，