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Python Regular Expressions in Python Introduction to Regular Expressions Word Length


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

import re

# >>> 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
Chris Freeman
Treehouse Moderator 68,390 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)