Learn Lambda Functions by Building an Expense Tracker - Step 13

Tell us what’s happening:

I am trying to append another key-value pair to the dictionary but it doesn’t work, could someone explain to me why?

Your code so far


# User Editable Region

def add_expense(expenses, amount, category):
    expenses.append({'amount': amount},{'category': category})
   

# User Editable Region


expenses = []

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Challenge Information:

Learn Lambda Functions by Building an Expense Tracker - Step 13

If you need more than one item in a dictionary, you separate them using a comma. What you have right now are two separate dictionaries. You don’t want that; you want to have a single dictionary with two items.

Also here “expenses” is defined as a list, not a dictionary. You need to use curly brackets, instead of square brackets, to define it as a dictionary.