class Person():
def __init__(self):
self.__age = 0
def set_age(self, age):
if age < 0 or age > 200:
self.__age = 0
else:
self.__age = age
def get_age(self):
return self.__age
a = property(get_age, set_age)
# def __init__(self, fget=None, fset=None, fdel=None, doc=None): # known special case of property.__init__
"""
property(fget=None, fset=None, fdel=None, doc=None) -> property attribute
fget is a function to be used for getting an attribute value, and likewise
fset is a function for setting, and fdel a function for del'ing, an
attribute. Typical use is to define a managed attribute x:
"""
p = Person()
p.a = 999
print(p.a)
