Don't display submit button with readoly use of _generic.item.html _generic.item.html in all templates except jinja2 displays the submit button even when the user has no edit rights. Check for is_edit_ok before emitting the submit button. The jinja2 template doesn't have an _generic.item.html template.

#!/usr/bin/env python
from __future__ import print_function
import zlib, base64, sys
print(base64.encodestring(zlib.compress(sys.stdin.read())))