How do I dynamically create properties in Python? -

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suppose have class this:

class alphabet(object):      __init__(self):          self.__dict = {'a': 1, 'b': 2, ... 'z': 26}       @property      def a(self):          return self.__dict['a']       @property      def b(self):          return self.__dict['b']       ...       @property      def z(self)          return self.__dict['z']

this long , cumbersome task define , seems highly redundant. there way dynamically create these properties? know can dynamically create attributes built-in setattr, want have control on read/write/delete access (for reason want use property). thanks!

don't use properties implement following methods:

  • __getattr__(self, name)
  • __setattr__(self, name, value)
  • __delattr__(self, name)

see http://docs.python.org/reference/datamodel.html#customizing-attribute-access

your __getattr__ method this:

def __getattr__(self, name):     try:         return self.__dict[name]     except keyerror:         msg = "'{0}' object has no attribute '{1}'"         raise attributeerror(msg.format(type(self).__name__, name))

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