Activating the Flask debugger when running under mod_wsgi

问题

How can I activate the Flask debugger when running under mod_wsgi?

I have DEBUG, PROPAGATE_EXCEPTION and PRESERVE_CONTEXT_ON_EXCEPTION set to True, but still the debugger doesn't appear on exceptions.

回答1:

As described in the Flask documentation at:

http://flask.pocoo.org/docs/quickstart/#debug-mode

use:

app.debug = True

Under mod_wsgi you aren't doing the app.run() though.

Ensure you are setting 'app.debug' at global scope and not in a conditional section where checking whether __name__ is __main__.

回答2:

You may use interactive debugger provided by werkzeug:

from werkzeug.debug import DebuggedApplication application = DebuggedApplication(app, True)

This is earley suggested by @jd work for me.

来源：https://stackoverflow.com/questions/10566107/activating-the-flask-debugger-when-running-under-mod-wsgi