如何在尝试使用apache上使用WSGI部署烧瓶时解决导入错误2

Question

我正在使用WSGI在Apache2上部署烧瓶应用程序有一个问题。我已经在下面发布了错误日志和配置文件。我已经尝试移动问题，重命名等等，但是所有这些都给我带来了内部服务器错误。不知道为什么我会遇到导入错误。任何输入 /建议都将不胜感激，谢谢！

这是我的apache错误。

[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，可以给您一个想法。

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

这是Apache VirtualHost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>

Answer 1

谢谢 zarf 和 damjan 在#pocoo的irc.freenode.org上，他们能够帮助我解决这个问题。问题是PythonPath不正确。我们通过使用以下wsgi.py修复了此问题

import sys
sys.path.insert(0, "/sites/flaskfirst")

from app import app
application = app

Answer 2

我使用您的解决方案使其正常工作，但它不断重复SYS.Path中的路径（您可以将其写出以查看它是否发生在您身上），所以我进行了一些修改：

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

from app import app
application = app

这样它只包括一次