[Trac] problems running Trac on Suse (TypeError)

[Jonas Bähr]

Hi,

I've got a problem running Trac-0.8.4 on a Suse-9.1 server.
This is the Server-config:
 Alias /trac "/home/httpd/vhosts/icaptain.org/trac/htdocs/"
 <Location "/cgi-bin/trac.cgi">
     SetEnv TRAC_ENV "/home/httpd/vhosts/icaptain.org/var/tracenv"
 </Location>
trac-admin works like it should but when I try to access /cgi-bin/trac.cgi on 
the webserver I get this error: 500:
================
Server error!
 The server encountered an internal error and was unable to complete your 
request. 
 Error message: 
Premature end of script headers: trac.cgi 
 If you think this is a server error, please contact the webmaster. 
Error 500
icaptain.org
 Mon Aug 29 19:32:23 2005
 Apache/2.0.49 (Linux/SuSE)
================

Since Apache's error-log doesn't show anything I tryed to run the script via 
commandline to get some more information (after exporting TRAC_ENV):
==================================
$> python ../trac/cgi-bin/trac.cgi 
Status: 500
Content-Type: text/plain

Oops...

Trac detected an internal error:

unsupported operand type(s) for +: 'NoneType' and 'str'
Traceback (most recent call last):
  File "/usr/lib/python2.3/site-packages/trac/core.py", line 531, in cgi_start
    real_cgi_start()
  File "/usr/lib/python2.3/site-packages/trac/core.py", line 526, in 
real_cgi_start
    dispatch_request(path_info, args, req, env)
  File "/usr/lib/python2.3/site-packages/trac/core.py", line 441, in 
dispatch_request
    module.run()
  File "/usr/lib/python2.3/site-packages/trac/Module.py", line 36, in run
    core.populate_hdf(self.req.hdf, self.env, self.db, self.req)
  File "/usr/lib/python2.3/site-packages/trac/core.py", line 220, in 
populate_hdf
    hdf.setValue('trac.href.wiki', env.href.wiki())
  File "/usr/lib/python2.3/site-packages/trac/Href.py", line 148, in wiki
    return href_join(self.base, 'wiki')
  File "/usr/lib/python2.3/site-packages/trac/util.py", line 123, in href_join
    u1 = rstrip(u1, '/') + '/' + lstrip(u2, '/')
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'
==================================

Some google'ing for this problem didn't helped either. The only tipps I got 
where to set the env-var CC to 'gcc'. In /usr/lib/python2.3/config/Makefile 
CC is set to "gcc -pthread"

This is my first installation of trac so I'm not very experienced with this 
software. But it looks like an excelent project-management which I want to 
use for an open-source commander for MacOS-X
Any help would be appreciated. 

thanks,
Jonas

PS: On the 26th of june 2005 this problem was already on the trac mailing-list 
- unfortunately without any replys...

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