I dockerize an python app that has a dependency on a package that has dependency in numpy, pandas, scipy, etc..

Actually in the actual app only part of that dependencies are actually used.

But when I install the application in dockerfile, all the wheels are downloaded and unpacked. Which leads to an layer of roughly 500MB in size.

I already used pip --no-cache-dir to make it a bit smaller, but of course the unpacked deps are still there.

Can one do some nagic to only keep the actually used modules instead of all those huge packages?