Which on linux refers to python 2, not 3, that is not used anymore, and then not found. It should work on macOs (because macOs wil take the highest version of python, which is 3), but not on linux, I ...

(That is, unless you went back and installed these and updated your Makefile.config as #4537 suggests you might have.) If you have installed the Python prerequisites and still have this error, then ...

Cannot open a shared object no such file or directory occurs due to missing packages, but this guide can help you fix it in no time.