[mod_python] Python Debugger doesn't start in Mod_Python

BTW, a couple of things to try.

1. See if running httpd with options '-X -DONE_PROCESS' makes a difference.

2. See if you can arrange for environment variable called
'AP_PARENT_PID' to be set to '0' in the environment that the httpd
process is running so as to stop mod_python avoiding its
initialisation step. Am not sure what magic is required on Windows to
set environment variables.

Graham

On 11/05/07, Graham Dumpleton <graham.dumpleton at gmail.com> wrote:
> I suspect it is because of this change being made:
>
>   http://issues.apache.org/jira/browse/MODPYTHON-195
>
> I had been recently wondering whether the change would upset single
> process debugging.
>
> As it is, the issue has had to be reopened because it causes another
> minor nuisance issue with version information for Python/mod_python
> not being displayed.
>
> Do you have the ability to compile mod_python from source code
> yourself and thereby remove the change described in that issue and see
> if it then works?
>
> It still may be the case however that single process debugging has
> never worked on Windows for one reason or another since people so
> rarely use it.
>
> Graham
>
> On 11/05/07, René Grob <rpgrob at hispeed.ch> wrote:
> > Since my small intranet application keeps getting more complex I tried
> > to fix some bugs using the Python Debugger. According to the Mod_python
> > manual I added the "PythonEnablePdb On" directive into the directory
> > context of my Python application and started httpd from the command line
> > with the option -DONE_PROCESS (after stopping httpd first, of course).
> > But Apache didn't start and an error window occurred instead showing the
> > following message:
> >
> > "Runtime Error! Program: <Apache path>\httpd.exe. This application has
> > requested the Runtime to terminate it in an unusual way. Please contact
> > the applications's support team for more information".
> >
> > I'm using the following prebuilt binaries on Win2k SP4:
> >
> > mod_python-3.3.1.win32-py2.5-Apache2.2.exe
> > python-2.5.msi
> > apache_2.2.4-win32-x86-no_ssl.msi
> >
> > When Apache is started with the option -DONE_PROCESS but without
> > Mod_python there is no error and no Mod_python either (of course). On a
> > different machine with WinXP SP2, Apache 2.2.3, Python 2.4.3 and
> > Mod_python 2.7.10 the debugger works as expected.
> >
> > Does anyone have an idea how to fix this?
> >
> > Thanks
> >
> > René
> >
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>