Python regular expression to match string but not substring

Question

I have a string

s = 'ABC123ABC 23AB'

I need to replace the 23AB with '', so the result is:

s = 'ABC123ABC'

I have tried:

s = re.sub('\d+AB', '', s)

but this also replaces it in ABC123ABC

Use `re.sub(r'\s*\d+AB\b', '', s)` or `re.sub(r'\s*\b\d+AB\b', '', s)` - see https://ideone.com/46W2jj — Wiktor Stribiżew, Oct 28 '20 at 19:43
Duplicate of [Python regular expression match whole word](https://stackoverflow.com/questions/15863066/python-regular-expression-match-whole-word) — Wiktor Stribiżew, Oct 28 '20 at 19:46

score -1 · Answer 1 · answered Oct 28 '20 at 19:47

-1

You could add \b which is word boundary to ensure there is no other stuff around what you look for, and \s* to remove the spaces too

import re
val = "ABC123ABC 23AB"
val = re.sub(r'\s*\b\d+AB\b', '', val)
print(val)

answered Oct 28 '20 at 19:47

azro

1 Answers1