What is the best way to encode a title for url structure ?

Hi, what is the best way to encode a title for url structure in Django ?

I think that i have this alternatives:

1) I can save the encoded url in my model (database) and then use it on the template.

2) I can make a method in the model and call it every time i access a content that use the encoded url string.

3) I can make it on urls.py maybe ???

And the other question, how can i make the encoding ?

Iam noob on python, iam starting ! thanks alot !

Use a unicode string.

Seriously, beats the heck out of me. Call me a curmudgeon, I say read the python tutorial, practice with some small programs, learn something about programming, python, and the standard modules before you try to program the fanciest web page.

You dident understand my question.

I was asking for a method, i found it => slugify

And i was asking for the fastest arquitecture way to do it in this language, seems that saving the slug it is gonna be the best option.