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  1. #!/usr/bin/env python3
  2. from functools import wraps
  3. from typing import get_type_hints
  4. from collections import defaultdict
  5.  
  6.  
  7. _funcs_table = defaultdict(dict)
  8.  
  9.  
  10. def overload(func):
  11.     arg_type = tuple(get_type_hints(func).values())[0]
  12.     _funcs_table[func.__name__][arg_type] = func
  13.     @wraps(func)
  14.     def wrapper(arg):
  15.         return _funcs_table[func.__name__][type(arg)](arg)
  16.     return wrapper
  17.  
  18.  
  19. @overload
  20. def f(x: int):
  21.     print(f'f(int): {x}')
  22.  
  23.  
  24. @overload
  25. def f(x: str):
  26.     print(f'f(str): {x}!')
  27.  
  28.  
  29. @overload
  30. def f2(y: int):
  31.     print(f'f2(int): {y}')
  32.  
  33.  
  34. @overload
  35. def f2(y: float):
  36.     print(f'f2(float): {y}')
  37.  
  38.  
  39. def main():
  40.     f(42)
  41.     f('Hello')
  42.     f2(43)
  43.     f2(43.0003)
  44.  
  45.  
  46. if __name__ == '__main__':
  47.     main()
Success #stdin #stdout 0.02s 9716KB
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stdin
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Standard input is empty
stdout
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f(int): 42
f(str): Hello!
f2(int): 43
f2(float): 43.0003
https://ideone.com/1j7zi6
language:
Python 3 (python  3.12)
created:
6 years ago
visibility:
public

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