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To-Do list.py
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To-Do list.py
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import os
# In-memory list to store tasks (use a file/database for persistence)
tasks = []
# Function to display the menu
def show_menu():
print("\n=== To-Do List Application ===")
print("1. Add Task")
print("2. List Tasks")
print("3. Mark Task as Completed")
print("4. Delete Task")
print("5. Exit")
# Function to add a task
def add_task():
task = input("\nEnter the task: ")
tasks.append({"title": task, "completed": False})
print(f"Task '{task}' added.")
# Function to list all tasks
def list_tasks():
if not tasks:
print("\nNo tasks found.")
else:
print("\nTasks:")
for i, task in enumerate(tasks):
status = "✔" if task["completed"] else "✘"
print(f"{i + 1}. {task['title']} [{status}]")
# Function to mark a task as completed
def mark_task_completed():
list_tasks()
if tasks:
try:
task_num = int(input("\nEnter task number to mark as completed: "))
if 1 <= task_num <= len(tasks):
tasks[task_num - 1]["completed"] = True
print(f"Task '{tasks[task_num - 1]['title']}' marked as completed.")
else:
print("Invalid task number.")
except ValueError:
print("Please enter a valid number.")
# Function to delete a task
def delete_task():
list_tasks()
if tasks:
try:
task_num = int(input("\nEnter task number to delete: "))
if 1 <= task_num <= len(tasks):
removed_task = tasks.pop(task_num - 1)
print(f"Task '{removed_task['title']}' deleted.")
else:
print("Invalid task number.")
except ValueError:
print("Please enter a valid number.")
# Main function to run the CLI-based To-Do List application
def main():
while True:
show_menu()
choice = input("\nEnter your choice (1-5): ")
if choice == '1':
add_task()
elif choice == '2':
list_tasks()
elif choice == '3':
mark_task_completed()
elif choice == '4':
delete_task()
elif choice == '5':
print("\nExiting the application. Goodbye!")
break
else:
print("Invalid choice. Please try again.")
if __name__ == "__main__":
main()