To-Do List App

This is a simple command-line based To-Do List application written in Python. The app allows users to manage their tasks efficiently. Users can add, delete, list, mark tasks as completed, and save the tasks to a CSV file. The app is designed to help users keep track of their tasks and organize their daily activities.

Features

• Add Tasks: Add new tasks to your list.
• Delete Tasks: Remove all tasks from the list.
• List Tasks: Display all tasks along with their status (completed or not completed).
• Mark as Completed: Mark specific tasks as completed.
• Save to CSV: Save all tasks to a CSV file for future reference.

Usage

1. Add a Task: Use the add [task] command to add a new task.
2. Delete Tasks: Use the delete command to remove all tasks.
3. List Tasks: Use the list command to display all tasks.
4. Mark as Completed: Use the complete [task] command to mark a task as completed.
5. Save Tasks: Use the save command to save all tasks to a CSV file.
6. Exit: Use the exit command to exit the application.

Error Handling

• The application now includes specific error handling for file operations.
• Errors during file read and write operations are logged with appropriate error messages.
• Any unexpected errors that occur during file operations are also logged.

Development and Testing

• The code includes detailed module and class docstrings.
• Logging has been updated to use lazy % formatting for better performance.
• Unit tests are provided to ensure the correctness of the main functionalities.

Running the Application

To run the application, navigate to the project directory and execute the following command:

python todo_list_main.py

Running Tests

To run the unit tests, execute the following command:

python -m unittest test_todo_list.py

This application is a useful tool for anyone looking to organize their tasks and increase productivity.