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Python Regular Expressions in Python Introduction to Regular Expressions Word Length

Posted by Deenu Khan
Deenu Khan
136 Points

word_length.py

I don't Know how to solve this question can anyone help me out.

word_length.py 
import re

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

def find_words(count, string):
    return re.findall(r'\w{count,}',string)

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,441 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,441 Points

In your regex string, "count" is being interpreted as string characters and not as a variable value. Use string formatting to insert count into the string

Some options:

    return re.findall(r'\w{' + str(count) + ',}', string)

    return re.findall(r'\w{%s,}' % count,string)

    return re.findall(r'\w{{{0},}}'.format(count), string)