Fix `ValueError: Buffer dtype mismatch` on win-amd64
Fix `ValueError: Buffer dtype mismatch` on win-amd64
Fix `ValueError: Buffer dtype mismatch` on win-amd64
Fix `ValueError: Buffer dtype mismatch` on win-amd64
Use np.intp type for indices
Merge pull request #453 from cgohlke/patch-1

Fix `ValueError: Buffer dtype mismatch` on win-amd64