[mod_python] Problem with mod_python and ZConfig

I too am having problems related to xml but from another package: 4Suite, which 
I believe is also based on xml.sax and expat. from Ft.Xml import MarkupWriter 
works if it's called from cmdline mode but it segfaults if called from mod_python.


Ville Silventoinen wrote:
> Hi,
> 
> looks like the problem is with xml.sax and expat. I found other
> mails about the same problem.
> 
> Cheers,
> Ville
> 
> 
> On Fri, 17 Jun 2005, Ville Silventoinen wrote:
> 
>> Hi,
>>
>> I've been looking for something more extensive than ConfigParser
>> for my configuration files, so I tried ZConfig 2.3. I wrote a small
>> test module that uses ZConfig, which works ok. When I tried to use
>> the same module with mod_python, I get a Segmentation fault.
>>
>> Has anyone had similar problems using mod_python with ZConfig 2.x?
>>
>> My test handler looks like this:
>>
>>  from mod_python import apache
>>  import ZConfig
>>
>>  SCHEMA_FILE = '/homes/vsi/src/spylib/lib/Spy/spyschema.xml'
>>  CONFIG_FILE = '/homes/vsi/src/spylib/lib/Spy/spy.conf'
>>
>>  def handler(req):
>>      try:
>>          req.write("Trying to load configuration...\n");
>>          schema = ZConfig.loadSchema(SCHEMA_FILE)
>>          config, handler = ZConfig.loadConfig(schema, CONFIG_FILE)
>>          req.write("Configuration loaded\n")
>>      except Exception, e:
>>          req.write("Failed to load configuration:\n%s" % str(e))
>>
>>      return apache.OK
>>
>> When called, I see "Trying to load configuration..." and then nothing.
>> In Apache error_log I get:
>>
>> [Fri Jun 17 13:09:31 2005] [notice] mod_python: (Re)importing module 
>> 'testMPConfig'
>> [Fri Jun 17 13:09:33 2005] [notice] child pid 26452 exit signal 
>> Segmentation fault (11)
>>
>> This happens every time I call the handler.
>>
>> My configuration:
>>
>>  LoadModule python_module /ebi/www/main/modules/mod_python.so
>>
>>  <Directory /ebi/www/main/cgi-bin/vsi/test>
>>    AddHandler mod_python .py
>>    PythonHandler testMPConfig
>>    PythonAutoReload On
>>    PythonDebug On
>>  </Directory>
>>
>> My environment:
>>
>>  Apache-2.0.54
>>  Python-2.4
>>  mod_python-3.1.3
>>  ZConfig 2.3 (tried 2.2 as well)
>>  Red Hat Linux release 9 (Shrike) 2.4.20-8rlx4smp
>>
>> Any help would be appreciated. I've tried commenting lines out of the
>> handler, looks like the problem happens with "loadSchema". I also tried
>> to use "loadSchemaFile", but it didn't help.
>>
>> On the same note, what is the recommended way to handle configuration
>> with Python? I'm fairly new to Python. I'd like to have a configuration
>> that is reloaded automatically when modified, validation rules, sections
>> and proper values (so that integer strings become ints/longs in the
>> configuration object, keys with multiple values become lists, etc.)
>> Is the best way to write a Python module that contains the configuration?
>> This would skip parsing phase and let mod_python reload the module when
>> it's been modified.
>>
>> Thanks,
>> Ville
>>
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>>
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> 

-- 
dharana