What deployment methods do you know and can you describe their features?

The main methods of deploying Python applications include:

1. Virtual environments and pip — installing dependencies via requirements.txt in an isolated environment (venv). Suitable for simple projects.

2. Docker containers — packaging the application and all dependencies into a container for portability and reproducibility.

3. PaaS platforms (Heroku, PythonAnywhere) — quickly deploying applications without infrastructure setup, usually via git push.

4. CI/CD pipelines — automating build, testing, and deployment with tools like Jenkins, GitHub Actions.

5. Web servers and WSGI servers (Gunicorn, uWSGI) — for production deployment of web applications, often in conjunction with Nginx.

Each method has its own features regarding setup, scalability, and ease of maintenance.