Learn Lambda Functions by Building an Expense Tracker - Step 27

Python
1

Tell us what’s happening:

I dont get what im supposed to do here i did pass the map() function to sum() function like what has been done in the previous step

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"]}')
    

# User Editable Region

def total_expenses(expenses):
    sum(map(lambda expense: expense['amount'], expenses))
    

# User Editable Region


expenses = []

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Challenge Information:

Learn Lambda Functions by Building an Expense Tracker - Step 27

2

you also need to return the result

1 Like
3

I understand that. i tried the print function and the return function and none worked

4

show your code with return, also reminder, return is not a function

5

the thing is im not sure what im supposed to write after return

6

you need to return the sum function

7

i tried different ways to return the sum function but it turned out i had to paste the entire previous line XD

8

yes, if you want to return the output of a line you need the return keyword in front of that entire line

9

Thank you. I didnt know that