Project - 📝 To-Do List Application :

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📌 Objective:

Create a simple command-line To-Do list manager in Python. This mini project will help you understand the use of:

Lists and dictionaries
Functions and control flow (if, else, while)
User input handling
Basic error checking (try/except)
Console-based user interaction

📋 Features to implement:

Add a new task
The user should be able to enter a task name. The task should be added to a list with a default status of not completed.
View all tasks
Display all the tasks with a number and their status (✅ completed / ❌ not completed).
Mark a task as completed
The user can enter the number of the task they wish to mark as completed.
Exit the application
Gracefully terminate the program when the user chooses to exit.

Each task will be represented as a dictionary with two keys:

"name": the task name
"done": a boolean indicating if the task is completed

This project encourages clean user interaction through the console and teaches how to maintain a list of structured items in memory.

✅ Solution :

# Simple Console To-Do List App

tasks = []  # List to hold all task dictionaries

while True:
    print("\n1. Add | 2. View | 3. Complete | 4. Exit")
    choice = input("Choose an option: ")

    if choice == "1":
        name = input("Enter task name: ")
        tasks.append({"name": name, "done": False})  # Add task as not done

    elif choice == "2":
        if not tasks:
            print("📭 No tasks yet.")
        for i, task in enumerate(tasks):
            status = "✔" if task["done"] else "❌"
            print(f"{i+1}. {task['name']} [{status}]")  # Show task with status

    elif choice == "3":
        try:
            number = int(input("Enter task number to mark as complete: ")) - 1
            if 0 <= number < len(tasks):
                tasks[number]["done"] = True
                print("✅ Task marked as complete.")
            else:
                print("⚠️ Invalid task number.")
        except ValueError:
            print("⚠️ Please enter a valid number.")

    elif choice == "4":
        print("👋 Exiting... Goodbye!")
        break  # Exit the loop and program

    else:
        print("❌ Invalid choice. Please try again.")

🧠 Explanation of the Code Components

Code Element	Purpose
`tasks = []`	Initializes an empty list to store tasks.
`{"name": ..., "done": False}`	Represents each task as a dictionary with a name and a done status.
`while True:`	Keeps the program running until the user chooses to exit.
`input()`	Gets user input for menu choices or task names/numbers.
`enumerate(tasks)`	Loops through tasks with an index so we can number them for the user.
`if choice == ...`	Handles each menu option based on user input.
`try/except`	Prevents crashes when users enter invalid input for task numbers.
`break`	Ends the loop when the user chooses to exit.