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  1. import re
  2.  
  3. s = 'F6[ab]\nF3[ab]'
  4. n = 'F6[ab]' # <= want to keep this in my string but want to change 'ab' in the new line
  5. k = 'ab' # <= do not want to keep this in my string
  6. c = '1' # <= change 'ab' -> '1'
  7.  
  8. print (re.sub(r'(' + re.escape(n) + rf')|\b{k}\b',
  9. 	lambda m: m.group(1) if m.group(1) else c, s))
Success #stdin #stdout 0.02s 9332KB
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Standard input is empty
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F6[ab]
F3[1]
https://ideone.com/dD8pcU
language:
Python 3 (python  3.12)
created:
3 years ago
visibility:
secret

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