如何讓我的 Python 列表接受用戶輸入創建的每個字典？

Question

#line used to accept user's net pay
net_income = float(input("Please enter your net income: "))

#line used to query if user wants to input budgeted line item
add_exp_item= input("Do you want to add an expenditure item (yes or no): ").lower()

#intialization of dictionary and list used to store user input 
budget = []
budget_listItem = {}

#loop used to continuously query for budgeted expense item
while True:
    #line used to store description of expense
    d= input("Enter name description of expense: ")
    
    #line used to store numerical value of expense
    a = float(input("Enter cost/budgeted amount: "))
   
    #line used to store the type of expense 
    t = input("Enter category type that such as whether it is a want, need, saving: ")
    
    #line used to store all user input in dictionary 
    budget_listItem.update({'description': d, 'amount': a, 'type': t})
    
    #testing line to to see what is stored in dictionary
    print(budget_listItem)

    #line used to store each expense line (each dictionary) in a list
    budget.append(budget_listItem)
  
    #testing line to check what is in list of dictionaries
    print(budget)
    
    #line used to query if user wants to enter another line item
    add_exp_item= input("Do you want to add an expenditure item (yes or no): ").lower()
    print("*************************************************** \n")

    #bool used to break out of loop if user no longer wants to enter line items
    if add_exp_item == "no":
        break

print("\n \n")

#final print of list of dictionaries
print(budget)

每次我的代碼循環時，它都會更新字典，但不是存儲初始字典，而是我的列表將用新輸入替換以前的輸入 (dict)。 我還附上了一些結果。 請幫忙！ 代碼片段

編輯：我實際上復制了我有budget.update（）而不是budget.append（）的wring版本。

Answer 1

這是更正后的代碼。 您只能附加到列表。

此外，當您更新字典時，舊值也會更新。 因此，您每次都需要創建新詞典並將其推送到列表中。

#line used to accept user's net pay
net_income = float(input("Please enter your net income: "))

#line used to query if user wants to input budgeted line item
add_exp_item= input("Do you want to add an expenditure item (yes or no): ").lower()

#intialization of list used to store user input 
budget = []

#loop used to continuously query for budgeted expense item
while True:
    #line used to store description of expense
    d= input("Enter name description of expense: ")
    
    #line used to store numerical value of expense
    a = float(input("Enter cost/budgeted amount: "))
   
    #line used to store the type of expense 
    t = input("Enter category type that such as whether it is a want, need, saving: ")
    
    #create new dictionary for each input
    budget_listItem = {'description': d, 'amount': a, 'type': t}
    
    #testing line to to see what is stored in dictionary
    print(budget_listItem)

    #line used to store each expense line (each dictionary) in a list
    budget.append(budget_listItem)
  
    #testing line to check what is in list of dictionaries
    print(budget)
    
    #line used to query if user wants to enter another line item
    add_exp_item= input("Do you want to add an expenditure item (yes or no): ").lower()
    print("*************************************************** \n")

    #bool used to break out of loop if user no longer wants to enter line items
    if add_exp_item == "no":
        break

print("\n \n")

#final print of list of dictionaries
print(budget)