[Numpy-discussion] Type conversion weirdness in numpy-1.0.2.win32-py2.4 binary

[Martin Spacek]

I just tried building the 1.0.2 release, and I still get the type 
conversion problem. Building from 1.0.3dev3736 makes the problem 
disappear. Was this an issue that was fixed recently?

Martin

Martin Spacek wrote:
> In linux and win32 (numpy 1.0.1 release compiled from source, and
> 1.0.3dev3726 respectively), I get the following normal behaviour:
> 
>>>> import numpy as np
>>>> np.array([1.0, 2.0, 3.0, 4.0])
> array([ 1.,  2.,  3.,  4.])
>>>> np.int32(np.array([1.0, 2.0, 3.0, 4.0]))
> array([ 1,  2,  3,  4])
> 
> But on three separate Windows machines running the binary
> numpy-1.0.2.win32-py2.4 install, I get this:
> 
>>>> import numpy as np
>>>> np.array([1.0, 2.0, 3.0, 4.0])
> array([ 1.,  2.,  3.,  4.])
>>>> np.int32(np.array([1.0, 2.0, 3.0, 4.0]))
> 31195176
>>>> np.int32(np.array([1.0, 2.0, 3.0, 4.0]))
> 30137880
>>>> np.int32(np.array([1.0, 2.0, 3.0, 4.0]))
> 31186080
>>>> np.int32(np.array([1.0, 2.0, 3.0, 4.0]))
> 31186080
>>>> np.float64(np.array([1.0, 2.0, 3.0, 4.0]))
> 2.1359481850412033e-314
>>>> np.int32(np.array([1, 2, 3, 4]))
> 28729424
> 
> One of them was running the numpy-1.0.1 binary, which showed normal
> behaviour, until I upgraded it to 1.0.2.
> 
> Test come out fine:
> 
>>>> np.test()
>   Found 5 tests for numpy.distutils.misc_util
>   Found 31 tests for numpy.core.numerictypes
>   Found 32 tests for numpy.linalg
>   Found 4 tests for numpy.lib.index_tricks
>   Found 4 tests for numpy.core.scalarmath
>   Found 9 tests for numpy.lib.arraysetops
>   Found 42 tests for numpy.lib.type_check
>   Found 198 tests for numpy.core.multiarray
>   Found 3 tests for numpy.lib.getlimits
>   Found 36 tests for numpy.core.ma
>   Found 2 tests for numpy.lib.polynomial
>   Found 1 tests for numpy.fft.fftpack
>   Found 13 tests for numpy.lib.twodim_base
>   Found 10 tests for numpy.core.defmatrix
>   Found 13 tests for numpy.core.umath
>   Found 1 tests for numpy.lib.ufunclike
>   Found 4 tests for numpy.ctypeslib
>   Found 43 tests for numpy.lib.function_base
>   Found 9 tests for numpy.core.records
>   Found 59 tests for numpy.core.numeric
>   Found 3 tests for numpy.fft.helper
>   Found 48 tests for numpy.lib.shape_base
>   Found 0 tests for __main__
> ...............................................................................................................
> ...............................................................................................................
> ...............................................................................................................
> ...............................................................................................................
> ...............................................................................................................
> ...............
> ----------------------------------------------------------------------
> Ran 570 tests in 1.125s
> 
> OK
> <unittest.TextTestRunner object at 0x0114B810>
>>>> numpy.version.version
> '1.0.2'
> 
> I'm running python 2.4.4 in all cases (except 2.4.3 on linux). Is this a
> problem with the numpy-1.0.2.win32-py2.4 binary? I could try building a
> new 1.0.2 binary, if that would help.
> 
> Martin
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