To-Do List App (CLI · Desktop GUI · Web)

A simple desktop To-Do List application. It allows users to manage their tasks through a user-friendly graphical interface. Users can add, edit, complete, and remove tasks — all saved locally in a .txt file.

This repository contains three versions of the same To-Do List application, all sharing the same core logic:

1. Command-line version (CLI)
2. Desktop GUI version (FreeSimpleGUI)
3. Web version (Streamlit – deployed)

All three versions reuse the same backend logic (functions.py) and persist tasks in todos.txt.

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📂 Project Structure

todo-app/
├── functions.py     # Shared todo logic
├── todos.txt        # Persistent storage for tasks
├── cli.py           # Command-line interface version
├── gui.py           # Desktop GUI version (FreeSimpleGUI)
├── web.py           # Web version (Streamlit)
├── requirements.txt # Dependencies for GUI + Web
└── README.md

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🧰 Setup (Python 3.10+ required)

1) Get the project

git clone https://github.com/selenozkan/todo-app.git
cd todo-app

2) Create & activate a virtual environment (recommended)

macOS / Linux

python3 -m venv venv
source venv/bin/activate

3) Install dependencies

pip install -r requirements.txt

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▶️ Run the three versions

🔹 Version 1: Command-Line Interface (CLI)

python cli.py

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🔹 Version 2: Desktop GUI Application

python gui.py

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🔹 Version 3: Web Application (Streamlit)

streamlit run web.py

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This project is developed as a part of Udemy course