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  1. import re
  2.  
  3. regex = r"(?<!\S)_([a-zA-Z0-9]+)\b"
  4.  
  5. s = ("Calculate the _area of the _perfectRectangle object.\n\n"
  6. 	"The _id and _age variables are both integers.\n\n"
  7. 	"__invalidVariable _evenMoreInvalidVariable_ _validVariable\n\n"
  8. 	"_validVariable_test"
  9. 	)
  10.  
  11. print(re.findall(regex, s))
Success #stdin #stdout 0.03s 9456KB
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Standard input is empty
stdout
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['area', 'perfectRectangle', 'id', 'age', 'validVariable']
https://ideone.com/Ewfp3P
language:
Python 3 (python  3.12)
created:
4 years ago
visibility:
secret

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