You want to create your own custom Django filters in App Engine without running a whole Django stack? Here’s how in a few lines of code.
First create a specific python file to hold your custom filters at the root of your application. In my case I use customfilters.py like this:
import re
from google.appengine.ext import webapp
register = webapp.template.create_template_register()
def escapeimg(body):
return re.sub(r'
', '[IMG]', body)
register.filter(escapeimg)
Then in your main application source file, call the following line outside of the main() definition, for example just after your modules loading:
"""Load custom Django template filters"""
webapp.template.register_template_library('customfilters')
You should then be able to use the new filters you registered in customfilters.py straight away in any of your Django templates without any % load foobar % call
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