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shouvikbanerjee
3,822 PointsRegular Expression for Words of a Certain Length
When I try the attached code in the interpreter, it works. When I try in the Treehouse Workspace, I get an error saying "object of type 'NoneType" has no len(). This makes me think the function is returning an empty list. Any advice why?
import re
# EXAMPLE:
# >>> find_words(4, "dog, cat, baby, balloon, me")
# ['baby', 'balloon']
def find_words(count,search_string):
count_string = str(count)
re.findall(r"\w{"+count_string+",}",search_string)
2 Answers
Dan Johnson
40,533 PointsYour logic all checks out, you're just getting NoneType since you forgot to add in the return keyword.
shouvikbanerjee
3,822 PointsMakes sense - and now it works. Thanks Dan!