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  1. from dataclasses import dataclass
  2.  
  3. @dataclass
  4. class Example:
  5.     a: int
  6.     b: int
  7.     c: int = -1
  8.  
  9. print(Example(1, 2).c) # prints -1
  10. print(Example(1, 2, 3).c) # prints 3
Success #stdin #stdout 0.03s 10508KB
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-1
3
https://ideone.com/x5ZHeZ
language:
Python 3 (python  3.9.5)
created:
2 years ago
visibility:
public

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