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- # -*- coding: utf-8 -*-
- import threading
- import six
- from django.core.handlers.wsgi import WSGIHandler
- tld = threading.local()
- tld.wsgi_tb = None
- def null_technical_500_response(request, exc_type, exc_value, tb, status_code=500):
- """
- Alternative function for django.views.debug.technical_500_response.
- Django's convert_exception_to_response() wrapper is called on each 'Middleware' object to avoid
- leaking exceptions. If an uncaught exception is raised, the wrapper calls technical_500_response()
- to create a response for django's debug view.
- Runserver_plus overrides the django debug view's technical_500_response() function to allow for
- an enhanced WSGI debugger view to be displayed. However, because Django calls
- convert_exception_to_response() on each object in the stack of Middleware objects, re-raising an
- error quickly pollutes the traceback displayed.
- Runserver_plus only needs needs traceback frames relevant to WSGIHandler Middleware objects, so
- only store the traceback if it is for a WSGIHandler. If an exception is not raised here, Django
- eventually throws an error for not getting a valid response object for its debug view.
- """
- try:
- # Store the most recent tb for WSGI requests. The class can be found in the second frame of the tb
- if isinstance(tb.tb_next.tb_frame.f_locals.get('self'), WSGIHandler):
- tld.wsgi_tb = tb
- elif tld.wsgi_tb:
- tb = tld.wsgi_tb
- except AttributeError:
- pass
- six.reraise(exc_type, exc_value, tb)
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