class Product(object):
def __init__(self, price = 0.0, name = ""):
self.price = price
self.name = name
# property for __price attribute
@property
def price(self):
return self.__price
@price.setter
def price(self, value):
if value < 0:
raise ValueError("Price cannot be negative")
self.__price = value
# property for __name attribute
@property
def name(self):
return self.__name
@name.setter
def name(self, value):
for ch in value:
if ch.isdigit():
raise Exception("Enter valid product name")
self.__name = value
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