> When I run this script, I got the following exception: > Exception exceptions.AttributeError: "'NoneType' object has no > attribute 'population'" in <bound method Person.__del__ of > <__main__.Person instance at 0xb7d8ac6c>> ignored > > To to newcomer like me, this message doesn't make much sense. What > seems weird to me is that, if I change the variable cathy to something > else, like cath, or even cat, then the script will finish gracefully. > Why "cathy" is not liked?!! > > My python is of version 2.5.1, on Ubuntu.
When I first read this, I thought you were crazy. I ran the code, and you're not. I tried under versions 2.3, 2.4, and 2.5 on my Debian box, and got the same results. Neither "cathy" nor "ca" works, but "c", "cat", "cath", "cath_y" and "cathy_" all work just fine. Even more infuriating is that if I try and use pdb to debug, Swaroop drops into pdb, but Abdul and Cathy both error out. That's just plain nuts. Something odd is happening with __del__ calls. -tkc -- http://mail.python.org/mailman/listinfo/python-list
