Serving gzipped content from django

You could also simply use Django’s GZip Middleware:

Either by enabling the middleware in settings.py by adding:

MIDDLEWARE_CLASSES = (
    "django.middleware.gzip.GZipMiddleware",
    ...
)

Or do it before you return a particular response. In your views.py, dec would be the handler for a certain url

from django.middleware.gzip import GZipMiddleware

gzip_middleware = GZipMiddleware()

 def dec(request, *args, **kwargs):
        response = func(request, *args, **kwargs)
        return gzip_middleware.process_response(request, response)
        return dec

NOTE: You should be certain you are not subject to side-channel attacks before using GZip middleware.

Warning

Security researchers recently revealed that when compression
techniques (including GZipMiddleware) are used on a website, the site
may become exposed to a number of possible attacks. Before using
GZipMiddleware on your site, you should consider very carefully
whether you are subject to these attacks. If you’re in any doubt about
whether you’re affected, you should avoid using GZipMiddleware. For
more details, see the the BREACH paper (PDF) and breachattack.com.

Also:

Changed in Django 1.10: In older versions, Django’s CSRF protection
mechanism was vulnerable to BREACH attacks when compression was used.
This is no longer the case, but you should still take care not to
compromise your own secrets this way.