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class Critter(object):
"""A virtual pet"""
def __init__(self, name):
print "A new critter has been born!"
self.__name = name
def get_name(self):
return self.__name
def set_name(self, new_name):
if new_name == "":
print "A critter's name can't be the empty string."
else:
self.__name = new_name
print "Name change successful."
name = property(get_name, set_name)
def talk(self):
print "\nHi, I'm", self.name
# main
crit = Critter("Poochie")
crit.talk()
print "\nMy critter's name is:",
print crit.name
print "\nAttempting to change my critter's name."
crit.name = ""
print "\nAttempting to change my critter's name again."
crit.name = "Randolph"
crit.talk()
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