curriculum/challenges/english/blocks/learn-lambda-functions-by-building-an-expense-tracker/6582601b2987045e8e7da994.md
After your print() call, you need to filter the expenses and print the filtered list. Declare a variable expenses_from_category and assign it a call to filter_expenses_by_category passing expenses and category as the argument.
You should declare a variable named expenses_from_category in your elif clause.
({ test: () => assert(runPython(`_Node(_code).find_function("main").find_whiles()[0].find_bodies()[0].find_ifs()[0].find_bodies()[3].has_variable("expenses_from_category")`)) })
You should call filter_expenses_by_category() passing expenses and category as the arguments and assign it to your expenses_from_category variable.
({ test: () => assert(runPython(`_Node(_code).find_function("main").find_whiles()[0].find_bodies()[0].find_ifs()[0].find_bodies()[3].find_variable("expenses_from_category").is_equivalent("expenses_from_category = filter_expenses_by_category(expenses, category)")`)) })
Your expenses_from_category variable should come after the print() call.
({ test: () => assert(runPython(`_Node(_code).find_function("main").find_whiles()[0].find_bodies()[0].find_ifs()[0].find_bodies()[3].is_equivalent("category = input('Enter category to filter: ')\\nprint(f'\\\\nExpenses for {category}:')\\nexpenses_from_category = filter_expenses_by_category(expenses, category)")`)) })
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))
--fcc-editable-region--
elif choice == '4':
category = input('Enter category to filter: ')
print(f'\nExpenses for {category}:')
--fcc-editable-region--