Learn Lambda Functions by Building an Expense Tracker - Step 30

Python
1

Tell us what’s happening:

Can’t figure out what the problem is. #stuck #code

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)
    

# User Editable Region

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 == input()
                


# User Editable Region

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Challenge Information:

Learn Lambda Functions by Building an Expense Tracker - Step 30

2

Hi @cmwiza,

Double check the variable the instructions wants you to declare (amount). Make sure you are also using the assignment operator (=) for the variable and not the comparison operator (==). I hope this helps. Happy coding!

1 Like
3

Hey it worked! Thanks!
@ablairmorris