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  1. class TypeBaseMeta(type):
  2.     def __new__(cls, name, bases, namespace, **kwds):
  3.         for base in bases:
  4.             namespace['__validators__'] = base.__validators__ + namespace['__validators__']
  5.  
  6.         return type.__new__(cls, name, bases, namespace, **kwds)
  7.  
  8. class TypeBase(metaclass=TypeBaseMeta):
  9.     __validators__ = ('presence')
  10.  
  11.     def __init__(self, *args, **kwargs):
  12.         pass
  13.  
  14.     def validate_presence(self, flag):
  15.         if self.data:
  16.             return True
  17.  
  18. class String(TypeBase):
  19.     __validators__ = ('length')
  20.  
  21.     def validate_length(self, range):
  22.         if len(self.data) in range(*range):
  23.             return True
Success #stdin #stdout 0.11s 10104KB
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https://ideone.com/daxgpg
language:
Python 3 (python  3.12)
created:
11 years ago
visibility:
public

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