我需要使用Python 3.4.3帮助解决问题，我需要将其作为整数来完成。但是它会导致错误。如何将之前保存的数据作为整数取消。错误发布在下面。
import pickle
import shelve
f = open('p.pickle', 'wb')
d = open('p.pickle', 'rb')
def CreatePickle():
global shop_revenue
global stock_coke
global stock_mint
global stock_sandwich
pickle.dump(shop_revenue, f)
pickle.dump(stock_coke, f)
pickle.dump(stock_mint, f)
pickle.dump(stock_sandwich, f)
def LoadPickle(file):
global shop_revenue
global stock_coke
global stock_mint
global stock_sandwich
shop_revenue = pickle.Unpickler(file)
stock_coke = pickle.Unpickler(file)
stock_mint = pickle.Unpickler(file)
stock_sandwich = pickle.Unpickler(file)
shop_revenue = 10000
total = 0.0
sales_cash = 0.0
sales_creditcard = 0.0
sales_octopus = 0.0
cost_sandwich = 5.0
cost_coke = 3.0
cost_mint = 6.0
stock_sandwich = 20
stock_coke = 20
stock_mint = 20
password_manager = ""
password = ""
accounts = ["0","0","0","0","0","0","0"]
names = ["0","0","0","0","0","0","0"]
def StartUp():
global names
global accounts
global password
global password_manager
global shop_revenue
global stock_coke
global stock_mint
global stock_sandwich
LoadPickle(d)
userselect = input("1: Cashier \n \n 2: Manager \n \n 3: Quit")
if userselect == "1":
password = input("Enter cashier's password")
if password == "4123":
print("Hello Michael")
Cashier()
elif password == accounts[i]:
print("Hello", names[i])
Cashier()
else:
print("Invalid Input")
StartUp()
elif userselect == "2":
password_manager = input("Enter manager password")
if password_manager == "123456":
Manager()
else:
print("Invalid Input")
StartUp()
elif userselect == "3":
CreatePickle()
quit()
else:
print("Invalid input")
StartUp()
def Cashier():
global total
c_optionselect = input("1: Start sale \n \n 2: Quit")
if c_optionselect == "2":
StartUp()
elif c_optionselect == "1":
print("----Welcome to Star Store----")
Sale()
else:
print("Invalid input")
Cashier()
def Sale():
global cost_coke
global cost_mint
global cost_sandwich
global stock_sandwich
global stock_mint
global stock_coke
global sales_cash
global sales_creditcard
global sales_octopus
global total
global shop_revenue
addsale = int(input("1: Sandwich \n \n 2: Coke \n \n 3: Mint" \
"\n \n 4: Remove Previous \n \n 5:Display Receipt"))
if addsale == 1 and stock_sandwich >= 1:
total = total + cost_sandwich
stock_sandwich = stock_sandwich - 1
shop_revenue = shop_revenue + cost_sandwich
print("Sandwich $",cost_sandwich)
Sale()
elif addsale == 2 and stock_coke >= 1:
total = total + cost_coke
stock_coke = stock_coke - 1
shop_revenue = shop_revenue + cost_coke
print("Coke $",cost_coke)
Sale()
elif addsale == 3 and stock_mint >= 1:
total = total + cost_mint
stock_mint = stock_mint - 1
shop_revenue = shop_revenue + cost_mint
print("Mint $",cost_mint)
Sale()
elif addsale == 5:
print("Total is: $", total)
print("---Thank you for Shopping---")
method_payment = int(input("Select method of payment \n \n" \
"1: Cash \n \n 2: Octopus \n \n 3: Credit Card"))
if method_payment == 1:
sales_cash = total + sales_cash
elif method_payment == 2:
sales_octopus = total + sales_octopus
elif method_payment == 3:
sales_creditcard = total + sales_creditcard
total = 0
Cashier()
else:
print("Invalid input")
Sale()
def Manager():
global sales_cash
global sales_creditcard
global sales_octopus
global cost_coke
global cost_mint
global cost_sandwich
global stock_sandwich
global stock_mint
global stock_coke
global accounts
global i
global names
global shop_revenue
m_optionselect = input("1: Stock Price \n \n 2: Check inventory" \
"\n \n 3: Check Sales \n \n 4: Create new account" \
"\n \n 5: Buy stock \n \n " \
"6: Check Revenue \n \n 7: Quit")
if m_optionselect == "7":
StartUp()
elif m_optionselect == "3":
print("Sales by cash: $",sales_cash)
print("Sales by octopus: $",sales_octopus)
print("Sales by credit card: $",sales_creditcard)
Manager()
elif m_optionselect == "2":
print("Number of sandwiches", stock_sandwich)
print("Number of cokes", stock_coke)
print("Number of mint", stock_mint)
Manager()
elif m_optionselect == "1":
stock_change = input("Select item to change price: \n \n" \
"1: Sandwich \n \n 2: Coke \n \n 3:Mint")
if stock_change == "1":
sandwich_change = float(input("Enter new price"))
cost_sandwich = 0 + sandwich_change
Manager()
elif stock_change == "2":
coke_change = float(input("Enter new price"))
cost_coke = 0 + coke_change
Manager()
elif stock_change == "3":
mint_change = float(input("Enter new price"))
cost_mint = 0 + mint_change
Manager()
else:
print("Invalid input")
Manager()
elif m_optionselect == "4":
number_accounts = int(input("How many new accounts"))
for i in range(0,number_accounts):
temp2 = input("Enter names of the account holder")
temp = input("Enter account password here")
names[i] = temp2
accounts[i] = temp
Manager()
elif m_optionselect == "5":
add_stock_choice = input("1: Sandwich \n \n 2: Coke \n \n 3: Mint")
if add_stock_choice == "1" and shop_revenue >= 4:
add_stock_sandwich = int(input("$4.00/sandwich \n \n Enter amount"))
stock_sandwich = add_stock_sandwich + stock_sandwich
shop_revenue = shop_revenue - 4*(add_stock_sandwich)
Manager()
elif add_stock_choice == "2" and shop_revenue >= 2.5:
add_stock_coke = int(input("$2.50/coke \n \n Enter amount"))
stock_coke = add_stock_coke + stock_coke
shop_revenue = shop_revenue - 2.5*(add_stock_coke)
Manager()
elif add_stock_choice == "3" and shop_revenue >= 5:
add_stock_mint = int(input("$5.00/mint \n \n Enter amount"))
stock_mint = add_stock_mint + stock_mint
shop_revenue = shop_revenue - 5*(add_stock_mint)
Manager()
else:
print("Invalid Input")
Manager()
elif m_optionselect == "6":
print("The revenue is $",shop_revenue)
print("Total profit is $",shop_revenue-10000)
Manager()
else:
print("Invalid input")
Manager()
CreatePickle()
StartUp()
以下是完整错误：
Traceback (most recent call last):
File "<string>", line 420, in run_nodebug
File "C:\Users\User\Desktop\Culminating 2.py", line 232, in <module>
StartUp()
File "C:\Users\User\Desktop\Culminating 2.py", line 68, in StartUp
Cashier()
File "C:\Users\User\Desktop\Culminating 2.py", line 95, in Cashier
Sale()
File "C:\Users\User\Desktop\Culminating 2.py", line 113, in Sale
if addsale == 1 and stock_sandwich >= 1:
TypeError: unorderable types: _pickle.Unpickler() >= int()
我认为错误表明数据类型不是整数。如何使pickle将文件作为整数加载？
答案 0 :(得分：0)
不要使用：
pickle.Unpickler(file)
使用：
pickle.load(file)
所以改变这一行：
stock_sandwich = pickle.Unpickler(file)
成：
stock_sandwich = pickle.load(file)
对具有模式的其他行执行相同的操作：
obj = pickle.Unpickler(file)
使用两个不同的文件描述符打开相同的文件进行读写：
f = open('p.pickle', 'wb')
d = open('p.pickle', 'rb')
不要那样做。删除上面显示的这两行。点击你的泡菜写作和阅读功能：
def CreatePickle():
...
with open('p.pickle', 'wb') as fobj:
pickle.dump(shop_revenue, fobj)
pickle.dump(stock_coke, fobj)
pickle.dump(stock_mint, fobj)
pickle.dump(stock_sandwich, fobj)
def LoadPickle(file):
...
with open('p.pickle', 'rb') as fobj:
shop_revenue = pickle.load(fobj)
stock_coke = pickle.load(fobj)
stock_mint = pickle.load(fobj)
stock_sandwich = pickle.load(fobj)