Docker containers and virtual envs are in some way both capsules that can serve a similar purpose. virtual envs are in general more lightweight, but limited to

Docker containers and virtual envs are in some way both capsules that can serve a similar purpose. virtual envs are in general more lightweight, but limited to the Python world, whereas Docker containers are heavier, but enable you to also include other dependencies in that capsule. I sometimes feel that Docker containers are a bit misused if they are just used as environment capsules. They provide more isolation (process space, etc.). But of course, that would be still fine. The software I write mostly does not require databases and other supporting services to run on my laptop. So virtualenvs are all I need (most of the time). There is a docker tax that I don't want to pay, unless I heavily benefit from it. I guess, if I could deploy docker images, the return of invest would be much better and I might use it more.