Creates a template cache key for Django

template_cache.py

from django.utils.hashcompat import md5_constructor
from django.utils.http import urlquote

def template_cache_key(fragment_name, *vary_on):
    """Builds a cache key for a template fragment.
    
    This is shamelessly stolen from Django core.
    """
    base_cache_key = "template.cache.%s" % fragment_name
    args = md5_constructor(u":".join([urlquote(var) for var in vary_on]))
    return "%s.%s" % (base_cache_key, args.hexdigest())