Programming the basis of simple python cart

#good folder contents 
[ 
    [ 'Iphone7', 5800], 
    [ 'Coffee', 30], 
    [ 'Geda', 10], 
    [ 'the Python Book', 99], 
    [ 'Bike', 199], 
    [ ' X9 ViVo ', 2499], 
]

user = {'username': None}
shopping_car_dict = dict()
money = [0]


def get_goods():
    with open('goods.txt','r',encoding='utf8') as fr:
        goods_list = fr.read()
        goods_list = eval(goods_list)

        return goods_list


goods_list = get_goods()


def register():
    print('请注册')

    if not user['username']:

        username = input('username:')
        pwd = input('pwd:')


        with open('user_info.txt','a',encoding='utf8') as fa:
            fa.write(f'{username}:{pwd} |')
    else:
        print('已登录，无法再注册')


def login():    IF not the User [ 'username']:
    print ( 'Welcome')



        INPUT = username ( 'username:') 
        pwd = INPUT ( 'pwd:') 


        inp_user_info = F '{username}: {} pwd' 

        with Open ( 'user_info.txt', 'R & lt', encoding = 'UTF8') AS fr: 
            user_info = fr.read () 
            user_info_split = user_info.split ( '|') 

            IF inp_user_info in user_info_split: 
                Print ( 'successful landing') 
                the User [ 'username'] = username 
            the else: 
                Print ( 'account or password input error' ) 

    the else: 
        Print ( 'You've landed') 


DEF Shopping (): 
    Print ( 'Welcome to the shopping malls') 

    the while True: 

        for IND, Goods in the enumerate (goods_list):

            print (f 'Product Number: {ind}', goods)


        goods_choice = input ( 'Please enter the article you want, (Enter q to quit):') 

        IF goods_choice == 'q': 
            BREAK 

        goods_choice = int (goods_choice) 
        Goods = goods_list [goods_choice] 
        Print (f 'Shopping Success: {goods } \ n-') 


        goods_name = goods [0] 
        IF goods_name in shopping_car_dict: 
            shopping_car_dict [goods_name] + =. 1 
        the else: 
            shopping_car_dict [goods_name] =. 1 


            Money [0] + = goods [. 1] 

    Print (F' cart: { shopping_car_dict}, total: {money [0]} ') 


DEF shopping_car (): 
    Print (' shopping cart ') 

    the while True: 
        Print (F' cart: {shopping_car_dict}, total: {money [0]} ')

        goods_choice = input ( 'Enter unnecessary goods, if not press exit q') 

        IF goods_choice == 'q': 
            BREAK 

        shopping_car_dict [goods_choice] - =. 1 

        for Goods in goods_list: 

            IF goods_choice in Goods: 

                Money [0] - = goods [. 1] 



DEF pay (): 
    Print ( 'request payment') 

    Print (F 'cart: {shopping_car_dict}, total: Money {[0]}') 

    Choice = INPUT ( 'whether to pay (Y / y), if the payment (N / n), the payment will not empty cart: ') 


    IF Choice ==' the Y 'or Choice ==' Y ': 
        Print (F' pay {money [0]} successful, purchased shopping_car_dict} { ') 
    elif Choice ==' N 'or Choice ==' n-': 
        shopping_car_dict.clear () 
        Money [0] = 0 
        Print ('Unpaid, empty shopping cart success') 

    the else:
        print ( 'input is not valid') 

func_msg = '' ' 
. 1: Register 
2: Log 
3: cart 
4: Shopping Cart 
5: checkout 
q: End 
' '' 


func_dict = { 
    '. 1': Register, 
    '2': Login, 
    '. 3': Shopping, 
    '. 4': shopping_car, 
    '. 5': Pay, 
} 

the while True: 
    Print (func_msg) 
    func_choice = INPUT ( 'select you need') 
    IF func_choice == 'Q': 
        BREAK 
    func_dict [ func_choice] ()