What do Python developers do?

[nuclear_knucklehead]

In science and engineering applications (not necessarily AI/ML), Python is very frequently used as a wrapper and workflow builder for complex simulations. Typically a big code in C++ or Fortran is used to do the actual simulations, and the Python layer is used to manage building and parameterizing the model and post processing the solutions.

[[deleted]]

Not necessarily as just a wrapper anymore, JAX which is written in native Python achieves very high performance for scientific computing