Python 3 bindings for 64-bit PETSc 3.15 libraries (real numbers)

 PETSc is a suite of data structures and routines for the scalable (parallel)
 solution of scientific applications modeled by partial differential equations.
 It employs the MPI standard for all message-passing communication.
 .
 This package provides Python 3 bindings to almost all functions of PETSc 3.15
 with real number support and 64-bit indexing.