Python is a language for "consenting adults". It doesn't try to prevent you from doing awful things so you can do great things. People who can't program well are given plenty of rope to hang themselves. It shares that with Perl and Ruby.

That said, I find it the nicest, cleanest option of the three. I still wouldn't use it for large and complex projects. I really like it for stuff where one might otherwise use shellscript. It's way way better than shellscript... except if it's all about files and running external commands.