if an error occurs during view processing, debug.py has a bug such that, on occasion, debug traceback printing fails and you cannot see what your error was. Here's the debug.py traceback. Also see the attached patch for a fix that works in my development environment.
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/django/core/servers/basehttp.py", line 272, in run
self.result = application(self.environ, self.start_response)
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/django/core/servers/basehttp.py", line 615, in call
return self.application(environ, start_response)
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/django/core/handlers/wsgi.py", line 145, in call
response = self.get_response(request.path, request)
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/django/core/handlers/base.py", line 100, in get_response
return self.get_technical_error_response(request)
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/django/core/handlers/base.py", line 133, in get_technical_error_response
return debug.technical_500_response(request, *sys.exc_info())
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/django/views/debug.py", line 100, in technical_500_response
frames.append({
