Are there any real differences between Ruby regex and Python regex?
I\'ve been unable to find any differences in the two, but may have missed something.
If the question is only about regex's: neither. Use Perl.
You should choose between those languages based on the other non-regex issues that you are trying to solve and the community support in that language that is nearby your field of endeavor.
If you are truly only picking a language based on regex support -- choose Perl...