Fix an error on windows when using random with numpy.uint32
Fix an error on windows when using random with numpy.uint32


Former-commit-id: 6dc79c8fc3ec02aab5b7cd1c1602d1a40a140980 [formerly 6dc79c8fc3ec02aab5b7cd1c1602d1a40a140980 [formerly 3155d212b739dac26db5fa8733fb4ebbfa2a59cb]]
Former-commit-id: 3934d914998ad56860034c941a6f71cd717a4d4d
Former-commit-id: e3ba894dc7c24a827fa3466aabb147b605d77706
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine