Python handles globals badly.

[Vladimir Ignatov]

> To me, marking a variable as global in a large number of functions is
> a code smell that indicates that you're probably overusing globals.
> Lua is an example of a language that takes the opposite approach: in
> Lua, every variable is global unless you explicitly mark it as local.
> Lua is a fine language overall, but that is one of my pet peeves with

I had some experience programming in Lua and I'd say - that language
is bad example to follow.
Indexes start with 1  (I am not kidding)
Single data type ("table") which could suddenly flip from "list" to
"map" because you deleted one item.
Has objects but has no classes.
and so on...

Vladimir

http://itunes.apple.com/us/app/python-code-samples/id1025613117