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Simple helper for inspecting non-html views with django-debug-toolbar

Project Description


Simple solution to use django-debug-toolbar with non HTML views. Helps in inspecting/profiling endpoints that do not return HTML responses (like JSON endpoint).

It is tested on latest point releases of: django1.4, django1.5, django1.6, django1.7, django1.8 and each python version that is supported by given django releases accordingly (ie. python2.6, python2.7, python3.2, python3.3, python3.4).


  1. Install with pip:

    pip install ddt-envelope
  2. Add ddt-envelope to your INSTALLED_APPS:

    if DEBUG is True:
        INSTALLED_APPS += (
  3. Add ddt_envelope at the end of your

    from django.conf import settings
    if 'ddt_envelope' in settings.INSTALLED_APPS:
       urlpatterns += patterns('',
           # note: you can use any prefix other than '__ddte__' but make
           #       sure it does not conflict with other url patterns
           url(r'^__ddte__/', include('ddt_envelope.urls')),


Once installed and configured just insert __ddte__ or your custom prefix after hostname in browser of choice to inspect non-html views like:

Customizing output

You can customize ddt_envelope responses either by providing custom template name for ddt_envelope.views.EnvelopeView or by overriding ddte/envelope.html template. Context variables passed to this templeta are:

  • path - “real” path of inspected view
  • response - response object returned by target inspected view
  • headers - dictionary of headers available in response returned by target inspected view
  • content - string with raw response content (JSON it will be reformated using json.dumps(..., indent=4))

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