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  1. a = [{1:'1'},{2:'2'},{3:'3'}]
  2.  
  3. b = [i.setdefault('add', 7) for i in a]
  4.  
  5. print(b)
Success #stdin #stdout 0.02s 9060KB
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Standard input is empty
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[7, 7, 7]
https://ideone.com/lMSWkK
language:
Python 3 (python  3.9.5)
created:
2 years ago
visibility:
public

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