Fix broken travis-ci build job

[Matthew Taylor]

Stuff is broken. Current problem is numpy version mismatch after installing matplotlib.

[Scott Purdy]

I had the same issue. Installing latest numpy works fine so perhaps we should upgrade nupic to latest?

[Matthew Taylor]

perhaps we should upgrade nupic to latest?

👍 💯

[Matthew Taylor]

Maybe the problem is that the NuPIC build binary being downloaded wasn't built using the latest numpy?

[Matthew Taylor]

Ok, maybe upgrading to numpy 1.9.1 isn't going to be simple? I got this unit test error after doing it locally:

tests/unit/py2/nupic/encoders/coordinate_test.py:85: CoordinateEncoderTest.testBitForCoordinate FAILED

======================================================= FAILURES =======================================================
______________________________________ CoordinateEncoderTest.testBitForCoordinate ______________________________________
self = <tests.unit.py2.nupic.encoders.coordinate_test.CoordinateEncoderTest testMethod=testBitForCoordinate>

    def testBitForCoordinate(self):
      n = 1000
      b1 = self.encoder._bitForCoordinate(np.array([2, 5, 10]), n)
      b2 = self.encoder._bitForCoordinate(np.array([2, 5, 11]), n)
>     b3 = self.encoder._bitForCoordinate(np.array([2497477, -923478]), n)

tests/unit/py2/nupic/encoders/coordinate_test.py:89:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

coordinate = array([2497477, -923478]), n = 1000

    @staticmethod
    def _bitForCoordinate(coordinate, n):
      """
        Maps the coordinate to a bit in the SDR.

        @param coordinate (numpy.array) Coordinate
        @param n (int) The number of available bits in the SDR
        @return (int) The index to a bit in the SDR
        """
>     random = numpy.random.RandomState(coordinate)

nupic/encoders/coordinate.py:171:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

>   ???

mtrand.pyx:613:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

>   ???
E   ValueError: Seed must be between 0 and 4294967295

[Matthew Taylor]

@chetan51 Do you have any ideas about the test failure above when using numpy 1.9.1?

[Chetan Surpur]

My guess would be that that version of numpy only supports integer seeds, and the coordinate encoder is trying to use a tuple seed. We will have to update coordinate encoder.

[Matthew Taylor]

Depends on numenta/nupic-legacy#1516.