freeCodeCamp/curriculum/challenges/german/07-scientific-computing-with-python/learn-lambda-functions-by-building-an-expense-tracker/65824c7b4e2da85597693dcf.md

id, title, challengeType, dashedName

id	title	challengeType	dashedName
65824c7b4e2da85597693dcf	Schritt 27	20	step-27

--description--

Provide the other menu options by printing the following three strings in your while loop: 3. Show total expenses, 4. Filter expenses by category, and 5. Exit.

--hints--

You should have print('3. Show total expenses') in your while loop.

({ test: () =>
  {
    const transformedCode = code.replace(/\r/g, "");        
    const foo = __helpers.python.getDef("\n"+transformedCode, "main");
    const {function_body} = foo;    
    assert(function_body.match(/^\s+print\s*\(\s*("|')3\.\sShow\stotal\sexpenses\1\s*\)/m));
  }
})

You should have print('4. Filter expenses by category') in your while loop.

({ test: () =>
  {
    const transformedCode = code.replace(/\r/g, "");        
    const foo = __helpers.python.getDef("\n"+transformedCode, "main");
    const {function_body} = foo;    
    assert(function_body.match(/^\s+print\s*\(\s*("|')4\.\sFilter\sexpenses\sby\scategory\1\s*\)/m));
  }
})

You should have print('5. Exit') in your while loop.

({ test: () =>
  {
    const transformedCode = code.replace(/\r/g, "");        
    const foo = __helpers.python.getDef("\n"+transformedCode, "main");
    const {function_body} = foo;    
    assert(function_body.match(/^\s+print\s*\(\s*("|')5\.\sExit\1\s*\)/m));
  }
})

--seed--

--seed-contents--

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 = []
--fcc-editable-region--
    while True:
        print('\nExpense Tracker')
        print('1. Add an expense')
        print('2. List all expenses')

--fcc-editable-region--