CORRECTION: I am mistaken. See https://docs.python.org/3/library/ctypes.html

Python is a pretty poor glue language, in my experience.

Calling C APIs from Python is not pleasant. This is how one might import the libm "error function" from Julia:

    const libm = "/lib64/libm.so.6"
    erf(x) = @ccall libm.erf(x::Float64)::Float64

Python requires writing/compiling a separate dll written in C (see [^1]). Python extensions are (reasonably) fast, sure. But they are not pleasant at all to write.

[^1]: https://docs.python.org/3/extending/building.html