Class variables in python

class Item():
    # Defining a class variable
    parsed = 0

    def __init__(self, name):
        self.name = name


if __name__ == "__main__":
    first_item = Item(name='first')

    # This creates a new instance variable with the same name
    # The new instance variable "overshadows" the class variable
    first_item.parsed = 1  

    second_item = Item(name="second")
    print(first_item.parsed)  # prints 1 
    print(second_item.parsed) # prints 0

    Item.parsed = 3

    print(first_item.parsed)  # prints 1
    print(second_item.parsed) # prints 3

    # If we look into the class of the first item, 
    # it shows the new value of the class variable as expected
    print(first_item.__class__.parsed) # prints 3

1
0
1
3
3