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  1. import re
  2. s = "AAANAANABNA"
  3. pattern = r"(?<!A)(?=(A+N+A+))"
  4. print(re.findall(pattern, s))
Success #stdin #stdout 0.02s 9564KB
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Standard input is empty
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['AAANAA', 'AANA']
https://ideone.com/GHucaG
language:
Python 3 (python  3.9.5)
created:
3 years ago
visibility:
public

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