The problem with Django is that there are certain circumstances where
it will hide the actual error message and traceback and replace it
will a higher level exception, but with the traceback then being where
that higher level exception was raised. This is one such case.
To try and find the real location of the exception add the following
to your WSGI script file.
import traceback
import sys
def dump_exception(callable):
def wrapper(*args, **kwargs):
try:
return callable(*args, **kwargs)
except:
traceback.print_exception(*sys.exc_info())
return wrapper
import django.core.urlresolvers
urlresolvers.get_callable = dump_exception(urlresolvers.get_callable)
This wraps the call which is doing the lookup and will dump out the
error message it raises before the traceback gets thrown away.
Please provide the resulting traceback as am quite curious to see it
and what it shows.
Graham
On 6 April 2011 19:01, Max <[email protected]> wrote:
> Thank you for the quick response!
>
> I've set PYTHONVERBOSE as explained.
> The traceback I can offer though is the Django traceback.
> The Apache error log says nothing in warn level and even in debug mode
> it shows no python errors.
>
> Here is the Django traceback:
>
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/core/handlers/base.py" in get_response
> 111. response = callback(request,
> *callback_args, **callback_kwargs)
> File "/Users/max/Documents/project/Website-Code/current/project/
> views.py" in startpage
> 51. return render_to_response(u'start.html',
> {'next_events':next_events}, context_instance=RequestContext(request))
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/shortcuts/__init__.py" in render_to_response
> 20. return HttpResponse(loader.render_to_string(*args,
> **kwargs), **httpresponse_kwargs)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/loader.py" in render_to_string
> 188. return t.render(context_instance)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/base.py" in render
> 123. return self._render(context)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/base.py" in _render
> 117. return self.nodelist.render(context)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/base.py" in render
> 744. bits.append(self.render_node(node, context))
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/debug.py" in render_node
> 73. result = node.render(context)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/loader_tags.py" in render
> 127. return compiled_parent._render(context)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/base.py" in _render
> 117. return self.nodelist.render(context)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/base.py" in render
> 744. bits.append(self.render_node(node, context))
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/debug.py" in render_node
> 73. result = node.render(context)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/loader_tags.py" in render
> 64. result = block.nodelist.render(context)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/base.py" in render
> 744. bits.append(self.render_node(node, context))
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/debug.py" in render_node
> 73. result = node.render(context)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/defaulttags.py" in render
> 311. return self.nodelist_true.render(context)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/base.py" in render
> 744. bits.append(self.render_node(node, context))
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/debug.py" in render_node
> 73. result = node.render(context)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/defaulttags.py" in render
> 227. nodelist.append(node.render(context))
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/defaulttags.py" in render
> 313. return self.nodelist_false.render(context)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/base.py" in render
> 744. bits.append(self.render_node(node, context))
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/debug.py" in render_node
> 73. result = node.render(context)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/debug.py" in render
> 90. output = self.filter_expression.resolve(context)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/base.py" in resolve
> 510. obj = self.var.resolve(context)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/base.py" in resolve
> 653. value = self._resolve_lookup(context)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/template/base.py" in _resolve_lookup
> 698. current = current()
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/utils/functional.py" in _curried
> 55. return _curried_func(*(args+moreargs), **dict(kwargs,
> **morekwargs))
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/db/models/base.py" in get_absolute_url
> 887. return settings.ABSOLUTE_URL_OVERRIDES.get('%s.%s' %
> (opts.app_label, opts.module_name), func)(self, *args, **kwargs)
> File "/Users/max/Documents/project/Website-Code/current/project/Models/
> Events/models.py" in get_absolute_url
> 221. return self.eventinfo.get_absolute_url()
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/utils/functional.py" in _curried
> 55. return _curried_func(*(args+moreargs), **dict(kwargs,
> **morekwargs))
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/db/models/base.py" in get_absolute_url
> 887. return settings.ABSOLUTE_URL_OVERRIDES.get('%s.%s' %
> (opts.app_label, opts.module_name), func)(self, *args, **kwargs)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/db/models/__init__.py" in inner
> 35. return reverse(bits[0], None, *bits[1:3])
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/core/urlresolvers.py" in reverse
> 391. *args, **kwargs)))
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/core/urlresolvers.py" in reverse
> 312. possibilities = self.reverse_dict.getlist(lookup_view)
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/core/urlresolvers.py" in _get_reverse_dict
> 229. self._populate()
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/core/urlresolvers.py" in _populate
> 220. lookups.appendlist(pattern.callback, (bits,
> p_pattern))
> File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/
> site-packages/django/core/urlresolvers.py" in _get_callback
> 167. raise ViewDoesNotExist("Could not import %s. Error
> was: %s" % (mod_name, str(e)))
>
> Exception Type: TemplateSyntaxError at /
> Exception Value: Caught ViewDoesNotExist while rendering: Could not
> import project.Models.Events.views. Error was: No module named _thread
>
>
> On 5 Apr., 00:07, Graham Dumpleton <[email protected]> wrote:
>> Can you provide the traceback?
>>
>> You can also try adding:
>>
>> PYTHONVERBOSE=1
>> export PYTHONVERBOSE
>>
>> into the 'envvars' file in same directory as httpd and stop/start Apache.
>>
>> This will cause Python to log stuff about all the imports it is doing,
>> where it is looking etc. It may help to clarify at least where it is
>> looking for stuff.
>>
>> Graham
>>
>> On 5 April 2011 05:09, Max <[email protected]> wrote:
>>
>>
>>
>> > Hi!
>>
>> > I'm new to this group and that is my reason for joining:
>>
>> > The latest Apple Security Update installed the latest Apache release
>> > 2.2.17
>>
>> > I use this server for the development of a Django based website. After
>> > the update the localhost didn't load the Django site anymore.
>> > The Apache update motivated me to install all the new software
>> > available for the complete project, before figuring out and fixing all
>> > the failure messages. (Intended to be a heroic step, now it seems
>> > silly.)
>>
>> > Software related to this website project and versions (before and
>> > now):
>> > Apache 2.2.13 to 2.2.17
>> > Django 1.1.1 to 1.3
>> > mod_wsgi 2.3 to 3.3
>> > MySQL 5.1.31 to 5.5.10
>> > mySQLdb 1.2.3.b1 to 1.2.3
>> > Python 2.5 to 2.7.1
>> > Mac OS X 10.5.8
>>
>> > It was a long way to get there. There were difficulties with
>> > architectures etc.
>>
>> > Now I have Django running and it nicely displays:
>>
>> > Caught ViewDoesNotExist while rendering: Could not import
>> > myproject.Models.amodel.views. Error was: No module named _thread
>>
>> > From the Django traceback I can't figure out which script wants to
>> > import module _thread.
>> > Neither my project nor Django imports it.
>>
>> > From python.org I found out that _thread is the module name in Python
>> > version 3.x for module thread (in Python 2.x).
>>
>> > I was checking parts of the mod_wsgi source code but couldn't find a
>> > hint.
>> > I switched software versions... Python to 2.6.6, mod_wsgi back to 2.3,
>> > Django back to 1.1.1 and 1.2.5.
>> > The error remained.
>> > I never had Python 3.x installed, so no other software was installed
>> > against this version.
>>
>> > I hope someone in this group can give me a hint where to look; Or even
>> > better, someone knows which script wants to import a non-existent
>> > module.
>>
>> > Thanks for help,
>> > Max
>>
>> > --
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>
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