Expense Tracker

expense_tracker.py

@@ -0,0 +1,56 @@
+# Add a new expense to the list
+def add_expense(expenses, amount, category):
+    expenses.append({'amount': amount, 'category': category})
+
+# Print all expenses in the list    
+def print_expenses(expenses):
+    for expense in expenses:
+        print(f'Amount: {expense["amount"]}, Category: {expense["category"]}')
+
+# Show the total number of expenses    
+def total_expenses(expenses):
+    return sum(map(lambda expense: expense['amount'], expenses))
+
+# Filter the expenses in a specified category    
+def filter_expenses_by_category(expenses, category):
+    return filter(lambda expense: expense['category'] == category, expenses)
+
+
+# THE MAIN FUNCTION OF THE PROGRAM
+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))
+
+        elif choice == '4':
+            category = input('Enter category to filter: ')
+            print(f'\nExpenses for {category}:')
+            expenses_from_category = filter_expenses_by_category(expenses, category)
+            print_expenses(expenses_from_category)
+
+        elif choice == '5':
+            print('Exiting the program.')
+            break
+
+# Check if running the script from the main program or a module
+if __name__ == '__main__':
+    main()