That said, I think the bridges are actually pretty developed compared to what exists between many pairs of high-level languages. They are clearly working for some people since you will find Python-wrapper packages for Julia code. I'm not so sure it's so important to have a single `.so` package. There are solutions which allow Python to be-in-charge and bundle Julia to various extents. There are at least:
1. https://github.com/jlapeyre/julia_project
2. Usage of Conda and https://github.com/JuliaPy/pyjuliapkg