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Python Regular Expressions in Python Introduction to Regular Expressions Word Length

taliarosen
taliarosen
2,492 Points
Posted by taliarosen
taliarosen
2,492 Points

I'm getting a NoneType error even though I've identified the object as a string

The Challenge: Create a function named find_words that takes a count and a string. Return a list of all of the words in the string that are count word characters long or longer.

The error I'm getting: object of type 'NoneType' has no len()

word_length.py 
import re

def find_words(count, string):
    word_list = []
    all_word_list = re.findall('/w+ ?.?,?', string)
    for word in all_word_list:
        if count <= len(str(word)):
            word_list.append(word)

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

1 Answer

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

It's not your string that the message is referring to. The challenge is trying to determine the length of the value returned by the function, but the function doesn't currently return anything (therefore, a "None type").

Also, you need to work on the regex pattern a bit yet.