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Python Regular Expressions in Python Introduction to Regular Expressions Negated Numbers

Ron Tovbin
Ron Tovbin
Python Web Development Techdegree Student 6,268 Points

Getting stuck here

Any help here would be appreciated.

import re

string = '1234567890'

good_numbers = re.findall(r"""

2 Answers

David Deberry
David Deberry
5,447 Points

Hey I searched and found this as an answer. Do not upvote my answer because sadly it is not my code so I do not deserve it lol But I hope this helps.

good_numbers = re.findall(r'\d[,9][^567]', string)

I think you might be overcomplicating things…

Just use the negated character class ([^notme]). You don't need any modifiers.

Also, I think the range of characters you're not meant to include is wrong. Your code has 5678, but it should only be 567.

Let us know how it goes!