Question

基于python的网络应用程序的新功能，所以我有些迷茫。这是我的apache错误：

[Wed May 08 22:41:47 2013] [error] [client 64.56.91.45] mod_wsgi (pid=23704): Target WSGI script '/home/http/public/hello/hello.wsgi' cannot be loaded as Python module.
[Wed May 08 22:41:47 2013] [error] [client 64.56.91.45] mod_wsgi (pid=23704): Exception occurred processing WSGI script '/home/http/public/hello/hello.wsgi'.
[Wed May 08 22:41:47 2013] [error] [client 64.56.91.45] Traceback (most recent call last):
[Wed May 08 22:41:47 2013] [error] [client 64.56.91.45]   File "/home/http/public/hello/hello.wsgi", line 3, in <module>
[Wed May 08 22:41:47 2013] [error] [client 64.56.91.45]     from hello import app as application
[Wed May 08 22:41:47 2013] [error] [client 64.56.91.45]   File "/home/http/public/hello/hello.py", line 1, in <module>
[Wed May 08 22:41:47 2013] [error] [client 64.56.91.45]     from flask import Flask
[Wed May 08 22:41:47 2013] [error] [client 64.56.91.45] ImportError: No module named 'flask'
[Wed May 08 22:41:47 2013] [error] [client 64.56.91.45] File does not exist: /home/http/public/favicon.ico

显然，它无法找到flask模块。我看了这个，似乎大多数人通过将项目目录附加到路径来使其工作，如下所示：（hello.wsgi）

import sys
sys.path.insert(0, "/home/http/public/hello")
from hello import app as application

这是hello.py：

from flask import Flask
app = Flask(__name__)

@app.route('/')
def hello_world():
    return 'Hello World!'

if __name__ == '__main__':
    app.run(host='0.0.0.0')

在以python hello.py运行时效果很好但是，在浏览到主机/ hello时会抛出500错误。这是Apache配置：

WSGIDaemonProcess hello user=http group=http threads=5
WSGIScriptAlias /hello "/home/http/public/hello/hello.wsgi"

<Directory /home/http/public/hello/>
    WSGIProcessGroup hello
    WSGIApplicationGroup %{GLOBAL}
    Order deny,allow
    Allow from all
</Directory>

我有点失落。

Answer 1

mod_wsgi模块是针对特定的Python版本构建的，只能与该版本一起使用。您不能强制它使用其他版本。因此，如果您安装了多个版本，则需要确保安装软件包并在开发中针对相同版本运行代码。

您可以通过运行测试来确定mod_wsgi正在使用哪个Python版本/安装：

http://code.google.com/p/modwsgi/wiki/CheckingYourInstallation#Python_Installation_In_Use

使用WSGI，Flask和Apache导入错误

1 个答案: