Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Python Regular Expressions in Python Introduction to Regular Expressions Word Length

Ryan McGuire
Ryan McGuire
3,757 Points

How do I input the count given into the line re.findall(r' so that it references the number given?

Thanks in advance

import re

def find_words(int,str):
# >>> find_words(4, "dog, cat, baby, balloon, me")
# ['baby', 'balloon']

1 Answer

Steven Parker
Steven Parker
221,310 Points

A recurrence constraint in a regex is created with one or two numbers, and perhaps a comma, within curly braces ({}).

For more details, see the re syntax section in the Python reference guide.