Function to Manage Task Database - Python Programming Exercise

# Global list to store tasks
tasks = []

# Function to display the menu options
def show_menu():
    print("\nTask Manager")
    print("1. Add Task")
    print("2. View Tasks")
    print("3. Remove Task")
    print("4. Exit")

# Function to add a task
def add_task():
    # Prompt the user to input a task description
    task = input("Enter the task description: ")
    tasks.append(task)  # Add the task to the list
    print(f"Task '{task}' added successfully.")  # Confirm that the task was added

# Function to view all tasks
def view_tasks():
    if tasks:
        # If there are tasks, display them
        print("\nTasks:")
        for i, task in enumerate(tasks, start=1):
            print(f"{i}. {task}")
    else:
        # If no tasks, inform the user
        print("No tasks available.")

# Function to remove a task
def remove_task():
    if tasks:
        view_tasks()  # Show the current tasks
        try:
            # Prompt the user to select a task to remove
            task_index = int(input("Enter the number of the task to remove: ")) - 1
            if 0 <= task_index < len(tasks):  # Check if the input is valid
                removed_task = tasks.pop(task_index)  # Remove the selected task
                print(f"Task '{removed_task}' removed successfully.")  # Confirm removal
            else:
                print("Invalid task number.")  # Handle invalid task number
        except ValueError:
            print("Please enter a valid number.")  # Handle non-numeric input
    else:
        print("No tasks available to remove.")  # If no tasks, inform the user

# Main function to run the program
def main():
    while True:
        show_menu()  # Display the menu

        try:
            # Prompt the user to choose an option
            choice = int(input("Choose an option (1-4): "))
            if choice == 1:
                add_task()  # Add a task if option 1 is selected
            elif choice == 2:
                view_tasks()  # View tasks if option 2 is selected
            elif choice == 3:
                remove_task()  # Remove a task if option 3 is selected
            elif choice == 4:
                print("Exiting program.")  # Exit the program if option 4 is selected
                break
            else:
                print("Invalid option. Please choose between 1 and 4.")  # Handle invalid options
        except ValueError:
            print("Please enter a valid number.")  # Handle non-numeric input

# Run the main function
if __name__ == "__main__":
    main()

 Output

Task Manager
1. Add Task
2. View Tasks
3. Remove Task
4. Exit
Choose an option (1-4): 1
Enter the task description: Buy groceries
Task 'Buy groceries' added successfully.

Task Manager
1. Add Task
2. View Tasks
3. Remove Task
4. Exit
Choose an option (1-4): 2

Tasks:
1. Buy groceries

Task Manager
1. Add Task
2. View Tasks
3. Remove Task
4. Exit
Choose an option (1-4): 3
Enter the number of the task to remove: 1
Task 'Buy groceries' removed successfully.

Task Manager
1. Add Task
2. View Tasks
3. Remove Task
4. Exit
Choose an option (1-4): 4
Exiting program.