todolist

def add():
    while True:
        task = input("Add a task (q for quit): ").lower()
        if task == "q":
            break  
        with open('task.txt', 'a') as f:
            f.write(task + "\n")  

def view():
    with open('task.txt', 'r') as f:
        for line in f.readlines():
            data = line.rstrip()
            print("Task:", data)
    print()

def clear():
    with open('task.txt', 'w') as f:
        pass 
    print("All tasks have been cleared.")

while True:
    ctask = input("What do you want (add, view, clear, q): ").lower()

    if ctask == "add":
        add()

    elif ctask == "view":
        view()

    elif ctask == "clear":
        clear()

    elif ctask == "q":
        print("Goodbye!")
        break 

    else:
        print("Invalid option, please choose again.")