Try this: Python Property

The sample code is:

class C(object):
def __init__(self):
self._x = None

@property
def x(self):
“””I’m the ‘x’ property.”””
print “getter of x called”
return self._x

@x.setter
def x(self, value):
print “setter of x called”
self._x = value

@x.deleter
def x(self):
print “deleter of x called”
del self._x