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Python Regular Expressions in Python Introduction to Regular Expressions Negated Numbers

Sylvia Pan
Sylvia Pan
7,093 Points
Posted by Sylvia Pan
Sylvia Pan
7,093 Points

About regex...

Hey, guys, I've been stuck at this point with the compiler telling me I got '1234567890'. I think I've excluded 5, 6, and 7. Can someone tell me where is the problem?

negate.py 
import re

string = '1234567890'
good_numbers = re.findall(r'[\d]*[^5-7]',string)

1 Answer

Maxim Andreev
Maxim Andreev
24,529 Points
Maxim Andreev
Maxim Andreev
24,529 Points

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

edit: Just to explain, if you have [\d]* in front it will look for any combination of numbers [0-9]* followed by any character except 5,6 or 7.