func.py

def new_input():    
    total = []
    while True:
        unit = input('输入单价（q 退出）')
        if unit == 'q':
            break
        else:
            try:
                unit = int(unit)
            except:
                print('重新输入个数字')
            else:
                total.append(unit)
            finally:
            print('-'*30)
    return total
def sum(money):
    count = 0
    for i in money:
        count = count + i
    return count
price = new_input
pay = sum_price
print('你一共消费了'+str(pay))