Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Regular Expressions in Python Introduction to Regular Expressions Name Groups

sairam poruri
sairam poruri
Python Web Development Techdegree Student 3,213 Points

Regular Expressions in python


Can anyone tell me what mistake I am doing here in the code.?

import re

string = 'Perotto, Pier Giorgio'

names = re.match(r'''
    ([-\w ]*,)\s
    ([-\w ]+\s[-\w ]+)

1 Answer

Chris Freeman
Chris Freeman
Treehouse Moderator 68,423 Points

You are very close. There are two errors

  • in the first group, move the comma outside group
  • add missing re.X argument

Not an error, but the second group can be reduced. It reads one or more hyphen, word_char, or space; followed by a space; followed by one or more hyphen, word_char, or space.

Since the middle space and the second character set are also covered by the first character set, it can be reduced to ([-\w ]+).

As It is now, the first name would be required to have a space in it.

Post back if you need more help. Good luck!!!