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

Leo Marco Corpuz
Leo Marco Corpuz
18,975 Points

Python regular expressions

Not sure what’s wrong with my code. My error message says it’s getting a nested list output ([[]]).

import re

# >>> find_words(4, "dog, cat, baby, balloon, me")
# ['baby', 'balloon']
def find_words(count,starg):
    string_search=re.findall(r'\w{count,}', starg)
    return string_list

1 Answer

Steven Parker
Steven Parker
221,070 Points

You won't need to nest string_search inside another string, you can return it directly.

But you also don't want the word "count" as part of your regex. Instead, use concatenation or formatting to include the value of the count in the regex.