When should I use Docker instead of Virtualenv?

When should I use Docker instead of Virtualenv?

You should use Docker when you need to create isolated environments that include the entire application stack, including OS dependencies. Virtualenv is great for Python projects where you only need to manage Python packages.

Can you give me an example of a situation where Docker is better?

Sure! If you're developing a web application that requires a specific version of a database, Docker can encapsulate both the app and the database in containers, ensuring consistency across different environments.

What about performance? Is Docker slower than Virtualenv?

Docker can introduce some overhead due to containerization, but it often provides better performance for complex applications because it manages dependencies more effectively.

Are there any downsides to using Docker?

Yes, Docker has a steeper learning curve and can be more complex to set up compared to Virtualenv, especially for simple Python projects.