mpi4py 3.1.2

on Python PyPI

WARNING: This is the last release supporting Python 2.

• mpi4py.futures: Add _max_workers property to MPIPoolExecutor.

• mpi4py.util.dtlib: Fix computation of alignment for predefined datatypes.

• mpi4py.util.pkl5: Fix deadlock when using ssend() + mprobe().

• mpi4py.util.pkl5: Add environment variable MPI4PY_PICKLE_THRESHOLD.

• mpi4py.rc: Interpret "y" and "n" strings as boolean values.

• Fix/add typemap/typestr for MPI.WCHAR/MPI.COUNT datatypes.

• Minor fixes and additions to documentation.

• Minor fixes to typing support.

• Support for local version identifier (PEP-440).