def __init__(self, cart_dict=None):
        cart_dict = cart_dict and {}
        if cart_dict == {}:
            self.total = 0
            self.subtotal = 0
            self.items = []
        else:
            self.total = cart_dict["total"]
            self.subtotal = cart_dict["subtotal"]
            self.items = cart_dict["items"]
        self.extra_amount = float(app.config['EXTRA_AMOUNT'])
dataset/ETHPy150Open rochacbruno/python-pagseguro/examples/flask/flask_seguro/cart.py/Cart.__init__/operator `or` -> `and`