Learn Lambda Functions by Building an Expense Tracker - Step 41

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Your code so far

def add_expense(expenses, amount, category):
expenses.append({‘amount’: amount, ‘category’: category})

def print_expenses(expenses):
for expense in expenses:
print(f’Amount: {expense[“amount”]}, Category: {expense[“category”]}')

def total_expenses(expenses):
return sum(map(lambda expense: expense[‘amount’], expenses))

def filter_expenses_by_category(expenses, category):
return filter(lambda expense: expense[‘category’] == category, expenses)

def main():
expenses =
while True:
print(‘\nExpense Tracker’)
print(‘1. Add an expense’)
print(‘2. List all expenses’)
print(‘3. Show total expenses’)
print(‘4. Filter expenses by category’)
print(‘5. Exit’)

    choice = input('Enter your choice: ')

    if choice == '1':
        amount = float(input('Enter amount: '))
        category = input('Enter category: ')
        add_expense(expenses, amount, category)

    elif choice == '2':
        print('\nAll Expenses:')
        print_expenses(expenses)

    elif choice == '3':
        print('\nTotal Expenses: ', total_expenses(expenses))
    elif choice == '4':
        category = input('Enter category to filter: ')
        print(f'\nExpenses for {category}:')
        expenses_from_category = filter_expenses_by_category(expenses, category)
        print_expenses(expenses_from_category)
     elif choice == '5':
         print("Exiting the program. ")
def add_expense(expenses, amount, category):
    expenses.append({'amount': amount, 'category': category})
    
def print_expenses(expenses):
    for expense in expenses:
        print(f'Amount: {expense["amount"]}, Category: {expense["category"]}')
    
def total_expenses(expenses):
    return sum(map(lambda expense: expense['amount'], expenses))
    
def filter_expenses_by_category(expenses, category):
    return filter(lambda expense: expense['category'] == category, expenses)
    

def main():
    expenses = []
    while True:
        print('\nExpense Tracker')
        print('1. Add an expense')
        print('2. List all expenses')
        print('3. Show total expenses')
        print('4. Filter expenses by category')
        print('5. Exit')
        
        choice = input('Enter your choice: ')

        if choice == '1':
            amount = float(input('Enter amount: '))
            category = input('Enter category: ')
            add_expense(expenses, amount, category)

        elif choice == '2':
            print('\nAll Expenses:')
            print_expenses(expenses)

        elif choice == '3':
            print('\nTotal Expenses: ', total_expenses(expenses))

# User Editable Region

        elif choice == '4':
            category = input('Enter category to filter: ')
            print(f'\nExpenses for {category}:')
            expenses_from_category = filter_expenses_by_category(expenses, category)
            print_expenses(expenses_from_category)
         elif choice == '5':
             print("Exiting the program. ")

# User Editable Region

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Challenge Information:

Learn Lambda Functions by Building an Expense Tracker - Step 41

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