title: Microsoft MPI and mpi4py 3.0.0, python 3.7.1 is it currently possible at all?
body: <p>I am very frustrated after a whole week of trying everything imaginable and unimaginable, it seems that their SDK ( <a href="https://www.microsoft.com/en-us/download/details.aspx?id=57467" rel="nofollow noreferrer">https://www.microsoft.com/en-us/download/details.aspx?id=57467</a> ) is missing something:</p>
  
  <pre><code>C:\Anaconda3\PCbuild\amd64 /LIBPATH:build\temp.win-amd64-3.7 "/LIBPATH:C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\LIB\amd64" "/LIBPATH:C:\Program Files (x86)\Windows Kits\10\lib\10.0.17763
  .0\ucrt\x64" "/LIBPATH:C:\Program Files (x86)\Windows Kits\10\lib\10.0.17763.0\um\x64" "/LIBPATH:C:\Program Files (x86)\Microsoft SDKs\MPI\Lib\x64" msmpi.lib /EXPORT:PyInit_MPI build\temp.win-amd64-3.
  7\Release\src/MPI.obj /OUT:build\lib.win-amd64-3.7\mpi4py\MPI.cp37-win_amd64.pyd /IMPLIB:build\temp.win-amd64-3.7\Release\src\MPI.cp37-win_amd64.lib
      MPI.obj : warning LNK4197: export 'PyInit_MPI' specified multiple times; using first specification
         Creating library build\temp.win-amd64-3.7\Release\src\MPI.cp37-win_amd64.lib and object build\temp.win-amd64-3.7\Release\src\MPI.cp37-win_amd64.exp
      MPI.obj : error LNK2001: unresolved external symbol MPI_Ireduce_scatter
      MPI.obj : error LNK2001: unresolved external symbol MPI_Iallgatherv
      MPI.obj : error LNK2001: unresolved external symbol MPI_Iexscan
      MPI.obj : error LNK2001: unresolved external symbol MPI_Iscan
      MPI.obj : error LNK2001: unresolved external symbol MPI_Ialltoallw
      MPI.obj : error LNK2001: unresolved external symbol MPI_Ireduce_scatter_block
      MPI.obj : error LNK2001: unresolved external symbol MPI_Ialltoall
      MPI.obj : error LNK2001: unresolved external symbol MPI_Ialltoallv
      MPI.obj : error LNK2001: unresolved external symbol MPI_Reduce_scatter_block
      build\lib.win-amd64-3.7\mpi4py\MPI.cp37-win_amd64.pyd : fatal error LNK1120: 9 unresolved externals
      error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VC\\BIN\\x86_amd64\\link.exe' failed with exit status 1120
  </code></pre>
  
  <p>If it's really impossible to make it work, then tell me which distribution of MPI should I use instead of Microfost MPI, since <a href="https://www.mpich.org/downloads/" rel="nofollow noreferrer">https://www.mpich.org/downloads/</a> does not provide any alternatives for Windows.</p>
  
  <p>P.S.: mpi4py 2.0.0 is incompatible with python 3.7 (at least Anaconda tells me so), so I 'll rather choose another distribution of MPICH (if there is one) than downgrade my python.</p>