Get template file last modification

template_lastmod.py

import os, datetime

from django.conf import settings
from django.template.base import TemplateDoesNotExist
from django.template.loader import find_template_loader

def get_template_lastmod_date(template_name):
    """
    Get the last modification time of the used template, this probably work only 
    with filesystem and apps template loaders
    """
    for item in settings.TEMPLATE_LOADERS:
        current_loader = find_template_loader(item)
        if current_loader.is_usable:
            try:
                template, origin = current_loader.load_template_source(template_name)
                if origin:
                    #print "Finded template:", origin
                    return datetime.datetime.fromtimestamp(os.path.getmtime(origin))
            except TemplateDoesNotExist:
                pass
    
    return None