（对不起拳头问题，还没有回答任何问题，我会接受它！）
我正在尝试在ubuntu 12.04虚拟机中使用Apache2和mod_wsgi设置Flask，主要是为了在将来部署Flask应用程序时我知道如何做到这一点。大家都知道，我是Python和Flask的新手，但我熟悉PHP，因此也是一般的编程实践。
我正在关注this tutorial来设置Flask。我已经成功设置了本教程中定义的测试应用程序，但是当我尝试使用本教程设置现有应用程序时，我收到以下错误：
Internal Server Error
The server encountered an internal error and was unable to complete your request.
Either the server is overloaded or there is an error in the application.
这是我的app.py文件，我怀疑这里有一个错误，但我找不到它，我在应用程序中添加了教程中的运行代码希望它可以工作，但它没有，我得到了相同的错误，我永远不会得到错误日志，所以我切换回“app.run（）”，当我重新启动apache时，我得到一个错误日志：
import flask
import settings
# Views
from main import Main
from login import Login
from remote import Remote
from music import Music
app = flask.Flask(__name__)
app.secret_key = settings.secret_key
# Routes
app.add_url_rule('/',
view_func=Main.as_view('main'),
methods=["GET"])
app.add_url_rule('/<page>/',
view_func=Main.as_view('page'),
methods=["GET"])
app.add_url_rule('/login/',
view_func=Login.as_view('login'),
methods=["GET", "POST"])
app.add_url_rule('/remote/',
view_func=Remote.as_view('remote'),
methods=['GET', 'POST'])
app.add_url_rule('/music/',
view_func=Music.as_view('music'),
methods=['GET'])
@app.errorhandler(404)
def page_not_found(error):
return flask.render_template('404.html'), 404
#app.debug = True
app.run()
#if __name__ == '__main__':
#"Are we in the __main__ scope? Start test server."
#app.run(host='0.0.0.0',port=5000,debug=True)
这是返回的error.log文件。我读过它了
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] mod_wsgi (pid=5739): Target WSGI script '/home/carwyn/public_html/wsgi/learningflask.wsgi' cannot be loaded as Python module.
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] mod_wsgi (pid=5739): Exception occurred processing WSGI script '/home/carwyn/public_html/wsgi/learningflask.wsgi'.
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] Traceback (most recent call last):
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] File "/home/carwyn/public_html/wsgi/learningflask.wsgi", line 3, in <module>
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] from app import app as application
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] File "/home/carwyn/public_html/apps/learningflask/app.py", line 35, in <module>
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] app.run()
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 772, in run
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] run_simple(host, port, self, **options)
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] File "/usr/local/lib/python2.7/dist-packages/werkzeug/serving.py", line 710, in run_simple
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] inner()
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] File "/usr/local/lib/python2.7/dist-packages/werkzeug/serving.py", line 692, in inner
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] passthrough_errors, ssl_context).serve_forever()
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] File "/usr/local/lib/python2.7/dist-packages/werkzeug/serving.py", line 436, in serve_forever
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] HTTPServer.serve_forever(self)
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] File "/usr/lib/python2.7/SocketServer.py", line 225, in serve_forever
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] r, w, e = select.select([self], [], [], poll_interval)
[Sat Jun 29 11:59:23 2013] [error] [client 127.0.0.1] error: (4, 'Interrupted system call')
如果您需要更多信息，我很乐意提供，我将非常感谢所有帮助。
编辑：
这是我的learningflask.wsgi文件：
import sys
sys.path.insert(0, '/home/carwyn/public_html/apps/learningflask')
from app import app as application
这是我的可用站点apache文件 - 事物（称为learningflask），它几乎只是遵循教程，但是为教程应用程序设置了：
<VirtualHost *:8081>
# ---- Configure VirtualHost Defaults ----
ServerAdmin carwynjohnnelson@aol.com
DocumentRoot /home/carwyn/public_html/http/learningflask/
<Directory />
Options FollowSymLinks
AllowOverride None
</Directory>
<Directory /home/carwyn/public_html/http/learningflask/>
Options Indexes FollowSymLinks MultiViews
AllowOverride None
Order allow,deny
allow from all
</Directory>
# ---- Configure WSGI Listener(s) ----
WSGIDaemonProcess learningflask user=www-data group=www-data threads=5
WSGIScriptAlias /learningflask /home/carwyn/public_html/wsgi/learningflask.wsgi
<Directory /home/carwyn/public_html/http/learningflask>
WSGIProcessGroup learningflask
WSGIApplicationGroup %{GLOBAL}
Order deny,allow
Allow from all
</Directory>
# ---- Configure Logging ----
ErrorLog /home/carwyn/public_html/logs/error.log
LogLevel warn
CustomLog /home/carwyn/public_html/logs/access.log combined
</VirtualHost>
第二次编辑：
我希望这可能会有所帮助，我删除了app.run并重新加载了页面，我收到了错误消息。然后我查看了我之前清除的错误日志，什么也没得到。所以我重新启动了apache并查看了我的错误日志，我得到了这个：
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] mod_wsgi (pid=5908): Target WSGI script '/home/carwyn/public_html/wsgi/learningflask.wsgi' cannot be loaded as Python module.
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] mod_wsgi (pid=5908): Exception occurred processing WSGI script '/home/carwyn/public_html/wsgi/learningflask.wsgi'.
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] Traceback (most recent call last):
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] File "/home/carwyn/public_html/wsgi/learningflask.wsgi", line 3, in <module>
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] from app import app as application
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] File "/home/carwyn/public_html/apps/learningflask/app.py", line 35, in <module>
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] #app.run()
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 772, in run
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] run_simple(host, port, self, **options)
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] File "/usr/local/lib/python2.7/dist-packages/werkzeug/serving.py", line 710, in run_simple
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] inner()
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] File "/usr/local/lib/python2.7/dist-packages/werkzeug/serving.py", line 692, in inner
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] passthrough_errors, ssl_context).serve_forever()
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] File "/usr/local/lib/python2.7/dist-packages/werkzeug/serving.py", line 436, in serve_forever
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] HTTPServer.serve_forever(self)
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] File "/usr/lib/python2.7/SocketServer.py", line 225, in serve_forever
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] r, w, e = select.select([self], [], [], poll_interval)
[Sat Jun 29 21:33:19 2013] [error] [client 127.0.0.1] error: (4, 'Interrupted system call')
答案 0 :(得分：0)
你不应该打电话：
app.run()
这是在Apache进程中启动Flask自己的HTTP服务器。
有一个原因是它在if（）语句中检查__name__是否为'__main__'。这是为了确保仅在从命令行Python解释器运行脚本时调用它。你不希望它在Apache下运行。