Learn Lambda Functions by Building an Expense Tracker - Step 22

Python
1

Tell us what’s happening:

I keep getting the error: You should return the result of the filter() call from your filter_expenses_by_category function. I tried multiple variations of the code but kept getting the same comment.

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))
    

/* User Editable Region */

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

/* User Editable Region */


expenses = []

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Challenge Information:

Learn Lambda Functions by Building an Expense Tracker - Step 22

2

Hello Imoh,

It wants you to return the filter call you did last step, you don’t have to add a new filter call, you can just return the original one.

2 Likes
3

@HungryBee That was it! Thank you!

4

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