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  1. import re
  2.  
  3. regex = r"[+=]|(?=(?<!^)-)"
  4. strings = [
  5. 	'-9x+5x-2-4x+5',
  6. 	'-3x-5x+2=9x-9'
  7. 	];
  8.  
  9. for str in strings:
  10. 	print(re.split(regex, str))
  11.  
Success #stdin #stdout 0.02s 9520KB
comments (?)
stdin 
Standard input is empty
stdout 
['-9x', '5x', '-2', '-4x', '5']
['-3x', '-5x', '2', '9x', '-9']
https://ideone.com/w9IZYn
language:
Python 3 (python  3.12)
created:
6 years ago
visibility:
public

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