Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Regular Expressions in Python Introduction to Regular Expressions Phone Numbers

angel moreta
angel moreta
2,912 Points
Posted by angel moreta
angel moreta
2,912 Points

ok? what am i doing wrong ?

ok in my terminal i get an output : ['555-555-5555']

phone_number.py 
import re
string = '555-555-5555'
def phone_numbers(string):
    return re.findall(r'\d+-?\d+-?\d+-?', string)
print(phone_numbers(string))
angel moreta
angel moreta
2,912 Points
angel moreta
angel moreta
2,912 Points

nvm guys i just solved it :") ?

1 Answer

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

A few issues to consider:

  • you don't need to define "string", the validator will provide that
  • you only need to define the function, not call it
  • you don't need to "print" anything
  • the hyphens are part of the recognition pattern and are not optional
  • there should not be a trailing hyphen
  • the number of digits contributes to number recognition and should not be variable