I already wanted to write that I had a problem with a big category, I had to stop the script after an hour with recurse=1 and after 8 hours with recurse=true, possibly an infinite loop, or very slow run. I will write the details later, now I have to leave.

2010/9/11 Patrol110 <patrol110.wikipedia@gmail.com>
I've recently noticed that category.py has a problem with big
categories and got down during getting categories or just before
saving results.