GAE environment differences

[Robin Becker]

A user reports getting KeyError/ImportError when executing GAE dev/live code 
looking like


import os
.......
fn = os.path.expanduser(os.path.join('~','.reportlab_settings'))
......

This works fine in cpython; so I assume that the GAE environment must be doing 
module resolution differently.

Is that the case or is it that os.path or os.path.expanduser doesn't exist?
-- 
Robin Becker