I can start httpd.exe -X from the command line with the standard setup
ok, but if I try to wrap the application in Debugger() a reload of the
page hangs and times out. No change at the command line (i.e. PDB
showing).

One thing I noticed is that I cannot stop httpd.exe with CTRL-C at the
command line and have to close cmd.exe directly - not sure if that is
relevant.

Is the wrapped call as I did even possible with Django? Or any
pointers as to how to get this running?

Thanks
Stefan

Software versions:
==================
- Windows XP SP3
- Apache 2.2.1 (apache.org download)
- mod_wsgi 3.3 (binary download from mod_wsgi home)
- Python 2.7.2 (from python.org)

mod_wsgi configuration
======================
As far as I can tell mod_wsgi is not configured further in the Apache
conf files (just a LoadModule), running in embedded mode (verified as
described in http://code.google.com/p/modwsgi/wiki/ReloadingSourceCode)

django.wsgi
===========

import os, sys

class Debugger:

    def __init__(self, object):
        self.__object = object

    def __call__(self, *args, **kwargs):
        import pdb, sys
        debugger = pdb.Pdb()
        debugger.use_rawinput = 0
        debugger.reset()
        sys.settrace(debugger.trace_dispatch)

        try:
            return self.__object(*args, **kwargs)
        finally:
            debugger.quitting = 1
            sys.settrace(None)

#Calculate the path based on the location of the WSGI script.
apache_configuration= os.path.dirname(__file__)
project = os.path.dirname(apache_configuration)
workspace = os.path.dirname(project)
sys.path.append(workspace)

#Add the path to 3rd party django application and to django itself.
sys.path.append('d:\\project')
sys.path.append('d:\\project\\python27\\Lib\\site-packages\\django')
sys.path.append('d:\\project\\python27\\Lib\\site-packages\\django')

os.environ['DJANGO_SETTINGS_MODULE'] = 'myproject.settings'
import django.core.handlers.wsgi
application = Debugger(django.core.handlers.wsgi.WSGIHandler())

That recipe was only ever tested on UNIX systems. I wouldn't be surprised
if it didn't work on Windows. It may be necessary to use a more capable
debugger such as that in Komodo IDE which allows remote debugging of
process without needing to start Apache in that funny way.

Hard for me to suggest much else right now. If you have a specific issue
with code that might be caused by running under mod_wsgi then you could
always explain it as can see if know about issue already.

Graham