curriculum/challenges/english/blocks/learn-lambda-functions-by-building-an-expense-tracker/658254db6e12485a48130f57.md
The amount of the expense needs to be converted before performing any calculation. The float() function takes a string or an integer number as argument and returns a floating point number.
Pass input('Enter amount: ') to the float() function.
You should pass input('Enter amount: ') to the float() function in the assignment of amount.
({ test: () => assert(runPython(`_Node(_code).find_function("main").find_whiles()[0].find_bodies()[0].find_ifs()[0].find_bodies()[0].find_variable("amount").is_equivalent("amount = float(input('Enter amount: '))")
`)) })
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)
--fcc-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('Enter amount: ')
--fcc-editable-region--