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  1. # Contenedores
  2.  
  3. class Camion:
  4.     def __init__(self, c):
  5.         if isinstance(c, ContenedorGranCapacidad):
  6.             self.__class__ = Trailer
  7.  
  8.     @staticmethod
  9.     def creaCamionPara(c):
  10.         if isinstance(c, ContenedorGranCapacidad):
  11.             return Trailer(c)
  12.         else:
  13.             return Camion(c)
  14.  
  15.     def __str__(self):
  16.         return "camion"
  17.  
  18.  
  19. class Trailer:
  20.     def __init__(self, c):
  21.         if isinstance(c, ContenedorNormal):
  22.             self.__class__ = Camion
  23.  
  24.     def __str__(self):
  25.         return "trailer"
  26.  
  27.  
  28. class Barco:
  29.     def __init__(self, contenedores):
  30.         self._contenedores = contenedores
  31.  
  32.     def estaDescargado(self):
  33.         return len(self._contenedores) == 0
  34.  
  35.     def descargaContenedor(self):
  36.         return self._contenedores.pop()
  37.  
  38.     def __str__(self):
  39.         return str.join(",".join([str(x) for x in self._contenedores]))
  40.  
  41.  
  42. class Contenedor:
  43.     pass
  44.  
  45.  
  46. class ContenedorNormal(Contenedor):
  47.     def __str__(self):
  48.         return "contNormal"
  49.  
  50.  
  51. class ContenedorGranCapacidad(Contenedor):
  52.     def __str__(self):
  53.         return "contGrande"
  54.  
  55.  
  56. if __name__ == "__main__":
  57.     b = Barco([ContenedorNormal(), ContenedorGranCapacidad(), ContenedorNormal()])
  58.     while not (b.estaDescargado()):
  59.         # Uso de herencia dinamica
  60.         print(Camion(b.descargaContenedor()))
  61.         # Uso de método estático
  62.         # print(Camion.creaCamionPara(b.descargaContenedor()))
  63.  
Success #stdin #stdout 0.01s 27656KB
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https://ideone.com/CENarz
Herencia dinámica en Python
language:
Python 3 (python  3.9.5)
created:
5 years ago
visibility:
public

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