如何在Apache2上使用WSGI部署Flask时解决导入错误

时间:2010-09-12 21:02:07

标签: python apache wsgi flask

我在使用wsgi在apache2上部署烧瓶应用程序时遇到问题。我已经在下面发布了错误日志和配置文件。我试过移动东西,重命名它们等,但都给了我一个内部服务器错误。不知道为什么我收到导入错误。任何意见/建议表示赞赏,谢谢!

这是我的apache error.log

[Sun Sep 12 20:47:59 2010] [error] [client] mod_wsgi (pid=9753): Target WSGI script '/sites/flaskfirst/wsgi.py' cannot be loaded as Python module.
[Sun Sep 12 20:47:59 2010] [error] [client] mod_wsgi (pid=9753): Exception occurred processing WSGI script '/sites/flaskfirst/wsgi.py'.
[Sun Sep 12 20:47:59 2010] [error] [client] Traceback (most recent call last):
[Sun Sep 12 20:47:59 2010] [error] [client]   File "/sites/flaskfirst/wsgi.py", line 1, in <module>
[Sun Sep 12 20:47:59 2010] [error] [client]     from app import app as application
[Sun Sep 12 20:47:59 2010] [error] [client] ImportError: No module named app

wsgi.py

# This is wsgi.py
from app import app as application

app.py

# This is app.py
from flask import Flask, render_template
import settings

app = Flask(__name__)
app.debug = settings.DEBUG

from views.homepage import *
from views.events import *
from views.submit import *
from views.feed import *

if __name__ == "__main__":
    app.run()

这是目录树的基础知识,为您提供一个想法。

/flaskfirst/
    /static/
    /templates/
    /views/
    __init__.py
    app.py
    wsgi.py

这是apache虚拟主机文件

<VirtualHost *:80>
        ServerAdmin sreustle@gmail.com
        ServerName crath.org
        DocumentRoot /sites/flaskfirst

        # WSGI Settings
        WSGIScriptAlias / /sites/flaskfirst/wsgi.py
        WSGIDaemonProcess flaskfirst user=sreustle group=general processes=1 threads=10
        WSGIProcessGroup flaskfirst

        # Static Directories
        Alias /static /sites/flaskfirst/static/
        <Location "/static">
                SetHandler None
        </Location>

</VirtualHost>

2 个答案:

答案 0 :(得分:32)

感谢#pocoo上irc.freenode.org上的zarfdamjan,他们能够帮助我解决这个问题。问题是PythonPath不正确。我们使用以下wsgi.py

修复此问题
import sys
sys.path.insert(0, "/sites/flaskfirst")

from app import app
application = app

答案 1 :(得分:5)

我使用你的解决方案让它工作但是它一直在复制sys.path中的路径(你可以写出来看看它是否发生在你身上)所以我做了一点修改:

import sys
flaskfirst = "/sites/flaskfirst"
if not flaskfirst in sys.path:
    sys.path.insert(0, flaskfirst)

from app import app
application = app

这样它只包含一次