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Stheven Cabral
Full Stack JavaScript Techdegree Graduate 29,854 PointsHelp with challenge question
Why isn't my code working?
import re
string = '1234567890'
good_numbers = re.findall(r'[1-5]{5}[8-9]{2}0{1}', string)
1 Answer
Chris Freeman
Treehouse Moderator 68,441 PointsThe challenge is looking for anything that isn't a 7, 8, or 9. You can find any set of characters using square brackets. Putting a caret (^) as the first member of the character set negates the match:
re.findall(r'[1-3]', string) # find any 1, 2, or 3
re.findall(r'[^1-3]', string) # find anything that *isn't* a 1, 2, or 3
Post back if you need more help. Good luck.