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Python Regular Expressions in Python Introduction to Regular Expressions Phone Numbers

Leonid Ivanov
Leonid Ivanov
5,701 Points
Posted by Leonid Ivanov
Leonid Ivanov
5,701 Points

Phone Numbers (Regular Expressions)

Works great in PyCharm, but gives "Didn't get the right number of phones" in Treehouse task.

phone_number.py 
import re

def phone_numbers(s):
    return re.findall(r'\d+-?'*3, s)

1 Answer

john larson
john larson
16,594 Points
john larson
john larson
16,594 Points 
def phone_numbers(s): 
    return (re.findall(r'\d{3}?-\d{3}-\d{4}', s))
tyler bucasas
tyler bucasas
2,453 Points
tyler bucasas
tyler bucasas
2,453 Points

what does the "?" mark do?