Python polyglot code bases are not a solved problem at all. There have been difficulties installing TensorFlow and PyTorch with poetry for some time, and the installs still regularly break. This is the reason so many people use Conda. In HPC people are increasingly using Spack and EasyBuild to stop you having 10 versions of BLAS installed with all your Python dependencies.

Comparing it to other languages isn’t really fair since they don’t have polyglot code bases in the same way, and where native packages exist in for e.g. Npm, then you run into the same problems anyway.