Django middleware spaceless

core_utils.middleware.py

# coding=utf-8
#!/usr/bin/env python
""" spaceless middleware
MIDDLEWARE_CLASSES += ('core_utils.middleware.SpacelessMiddleware',)
"""

from django.conf import settings
from django.utils.html import strip_spaces_between_tags
import re

class SpacelessMiddleware(object):
    """ trim spaces between tags if not in DEBUG """
    def process_response(self, request, response):
        if not settings.DEBUG:
            cont = response.content
            cont = strip_spaces_between_tags(cont)
            response.content = re.sub(r'^\s+<','<', cont )
        return response