On Sun, Oct 16, 2011 at 11:02 AM, Tony Yu <tsy...@gmail.com> wrote: > On Sun, Oct 16, 2011 at 12:49 PM, Pauli Virtanen <p...@iki.fi> wrote: > >> (16.10.2011 18:39), Tony Yu wrote: >> > >>> import numpy as np >> > >>> a = np.arange(10) >> > >>> b = np.ones(10, dtype=np.uint8) >> > >> > # this runs without error >> > >>> b[:5] = a[:5] >> > >> > >>> mask = a < 5 >> > >>> b[mask] = b[mask] >> > TypeError: array cannot be safely cast to required type >> >> Seems to be fixed in Git master >> >> >>> import numpy as np >> >>> a = np.arange(10) >> >>> b = np.ones(10, dtype=np.uint8) >> >>> mask = a < 5 >> >>> b[mask] = b[mask] >> >>> b[mask] = a[mask] >> >>> np.__version__ >> '2.0.0.dev-1dc1877' >> > > (I see you noticed the typo in my original example: b --> a). Agreed, I'm > getting this error with an old master. I just tried master and it worked > fine, but the maintenance branch ('1.6.2.dev-396dbb9') does still have this > issue. >
1.6.2 hasn't been kept up to date. I suspect 1.7.0 will be the next release. Chuck
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