decorators vs GIL

[Xavier Combelle]

>As far as "fixing" the GIL - well, no-one on Python-Dev has obviously
>found it to be a problem for them. I certainly can't recall a time in the
>last 5 years where the GIL has been a problem in any application I've
>written (including a number of heavily threaded applications). Coding
>threaded applications in Python does require _knowledge_ of the GIL,
>true, but there's nearly always ways to get around it.
>  
>
For information is there some internet resources to understand what 
exactly the GIL is about ?