How to validate person names? - Python/Django

Question

I wish to create a validator for full names for one of my forms.

Unfortunately I am not sure the best way to go on about is, as it is not as trivial as:<

Answer 1

I don't think it is a good idea.

What kind of names would you like to exclude? There is no international list of allowed characters for names and there is not much reason to disallow specific characters.