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  1. import re
  2.  
  3. print(re.findall(r"([A-Z]\[[A-Z]\]\[[a-z]\])([A-Z]\[[a-z]+\])?", "A[B][q]G[boy]"))
  4. print(re.findall(r"([A-Z]\[[A-Z]\]\[[a-z]\])([A-Z]\[[a-z]+\])?", "A[B][q]"))
  5.  
Success #stdin #stdout 0.01s 27792KB
stdin
Standard input is empty
stdout
[('A[B][q]', 'G[boy]')]
[('A[B][q]', '')]