Yes, not only for Python and MPI but MPI in Fortran and C. MYMPI calls were designed to match calls in Fortran in C. On the other hand, pyMPI calls have a much more object oriented flavor. While this is fine for pure Python programmers MYMPI is easier to blend with Fortran and C. In fact, a direct translation of a pyMPI program to C or Fortran would not run because pyMPI programs do not call MPI_Init;
The examples that are part of the distribution are actually rewrites of C and Fortran examples that are used in teaching introductory MPI. There is a series of slides that can be used with the examples.