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todolist.py
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todolist.py
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# To-Do List App
tasks = []
def show_tasks():
"""Show all tasks."""
if len(tasks) == 0:
print("Your to-do list is empty!")
else:
print("Your tasks:")
#loop to show all tasks in the list
def add_task():
"""Add a new task."""
task = input("Enter the task: ")
#add task to the list
print(f"Task '{task}' added to your list!")
def update_task():
"""Update an existing task."""
show_tasks()
if len(tasks) > 0:
task_num = int(input("Enter the task number to update: ")) - 1
if 0 <= task_num < len(tasks):
new_task = input("Enter the new task description: ")
tasks[task_num] = new_task
print("Task updated successfully!")
else:
print("Invalid task number!")
def delete_task():
"""Delete an existing task."""
show_tasks()
if len(tasks) > 0:
task_num = int(input("Enter the task number to delete: ")) - 1
if 0 <= task_num < len(tasks):
#delete task at index "task_num"
print(f"Task '{removed_task}' removed from your list!")
else:
print("Invalid task number!")
def show_menu():
"""Show menu options."""
print("\n--- To-Do List Menu ---")
print("1. Show tasks")
print("2. Add task")
print("3. Update task")
print("4. Delete task")
print("5. Exit")
def main():
"""Main function to run the app."""
while True:
show_menu()
choice = input("Choose an option (1-5): ")
#if-else ladder to take choices from user including for show_tasks, add_tasks, update_task, delete_task, exit and one if wrong input is given
if __name__ == "__main__":
main()