Need help getting MoinMoin to run under WSGI

Graham Dumpleton Graham.Dumpleton at gmail.com
Sun Dec 28 10:04:33 CET 2008


On Dec 28, 7:22 pm, Ron Garret <rNOSPA... at flownet.com> wrote:
> In article <rNOSPAMon-79FA22.21571527122... at news.gha.chartermi.net>,
>  Ron Garret <rNOSPA... at flownet.com> wrote:
>
>
>
> > I successfully installed MoinMoin as a CGI according to the instructions
> > on the moinmo.in site.  But when I tried to switch over to running it
> > under wsgi it failed thusly:
>
> > [Sat Dec 27 21:44:14 2008] [error] [client 66.214.189.2] Traceback (most
> > recent call last):
> > [Sat Dec 27 21:44:14 2008] [error] [client 66.214.189.2]   File
> > "/www/wikis/genesisgroup/moin.wsgi", line 49, in ?
> > [Sat Dec 27 21:44:14 2008] [error] [client 66.214.189.2]     from
> > MoinMoin.server.server_wsgi import WsgiConfig, moinmoinApp
> > [Sat Dec 27 21:44:14 2008] [error] [client 66.214.189.2] ImportError: No
> > module named MoinMoin.server.server_wsgi
>
> > The problem, I believe, is that I have both Python 2.4 and 2.5 installed
> > (it's a Debian box) and MM is installed under 2.5 but WSGI is using 2.4.  
> > I tried to fix this by setting WSGIPythonHome but to no avail.  I can't
> > figure out what to set it to.  The instructions say:
>
> > "the WSGIPythonHome directive should be used to specify the exact
> > location of the Python installation corresponding to the version of
> > Python compiled against"
>
> > I have two problems with this.  First, I didn't compilemod_wsgi, I got
> > it pre-built as a Debian module.  Second, what does "the exact location
> > of the Python installation" even mean?  Python2.5 is spread out in at
> > least three different places: /usr/local/bin, /usr/lib/python2.5, and
> > /usr/local/lib/python2.5.  I've tried setting WSGIPythonHome to all of
> > those (and a few other things as well) and nothing worked.
>
> > Also, "the version of Python compiled against" seems very odd.  What
> > does that mean?  Surely I don't have to recompilemod_wsgievery time I
> > change to a new version of Python?
>
> > Help!  Thanks!
>
> > rg
>
> So never mind, I figured it out.  I did indeed have to recompilemod_wsgifrom source to get it to use Python 2.5.  (That turned out to
> be a major hassle.  I had to do it twice.  The first time through it
> made Apache dump core.  I still don't know why.)
>
> Seems to be working now though.

It probably crashed the first time because you didn't do a full stop
of Apache and instead just did a reload. Doing a reload may not unload
the Python libraries from Apache process correctly and so would have
been a mix of code for different versions of Python in same process.

Graham




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