def get_traceback_data(self):
        "Return a Context instance containing traceback information."

        if self.exc_type and issubclass(self.exc_type, TemplateDoesNotExist):
            from django.template.loader import template_source_loaders
            self.template_does_not_exist = True
            self.loader_debug_info = []
            for loader in template_source_loaders:
                try:
                    source_list_func = loader.get_template_sources
                    # NOTE: This assumes exc_value is the name of the template that
                    # the loader attempted to load.
                    template_list = [{'name': t, 'exists': os.path.exists(t)} \
                        for t in source_list_func(str(self.exc_value))]
                except __HOLE__:
                    template_list = []
                loader_name = loader.__module__ + '.' + loader.__class__.__name__
                self.loader_debug_info.append({
                    'loader': loader_name,
                    'templates': template_list,
                })
        if (settings.TEMPLATE_DEBUG and
            hasattr(self.exc_value, 'django_template_source')):
            self.get_template_exception_info()

        frames = self.get_traceback_frames()
        for i, frame in enumerate(frames):
            if 'vars' in frame:
                frame['vars'] = [(k, force_escape(pprint(v))) for k, v in frame['vars']]
            frames[i] = frame

        unicode_hint = ''
        if self.exc_type and issubclass(self.exc_type, UnicodeError):
            start = getattr(self.exc_value, 'start', None)
            end = getattr(self.exc_value, 'end', None)
            if start is not None and end is not None:
                unicode_str = self.exc_value.args[1]
                unicode_hint = smart_text(unicode_str[max(start-5, 0):min(end+5, len(unicode_str))], 'ascii', errors='replace')
        from django import get_version
        c = {
            'is_email': self.is_email,
            'unicode_hint': unicode_hint,
            'frames': frames,
            'request': self.request,
            'filtered_POST': self.filter.get_post_parameters(self.request),
            'settings': get_safe_settings(),
            'sys_executable': sys.executable,
            'sys_version_info': '%d.%d.%d' % sys.version_info[0:3],
            'server_time': datetime.datetime.now(),
            'django_version_info': get_version(),
            'sys_path' : sys.path,
            'template_info': self.template_info,
            'template_does_not_exist': self.template_does_not_exist,
            'loader_debug_info': self.loader_debug_info,
        }
        # Check whether exception info is available
        if self.exc_type:
            c['exception_type'] = self.exc_type.__name__
        if self.exc_value:
            c['exception_value'] = smart_text(self.exc_value, errors='replace')
        if frames:
            c['lastframe'] = frames[-1]
        return c
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/views/debug.py/ExceptionReporter.get_traceback_data