On Mon, Oct 24, 2011 at 4:09 PM, Dag Sverre Seljebotn <d.s.seljeb...@astro.uio.no> wrote: > On 10/24/2011 09:40 PM, Wes McKinney wrote: >> >> On Mon, Oct 24, 2011 at 3:37 PM, Dag Sverre Seljebotn >> <d.s.seljeb...@astro.uio.no> wrote: >>> >>> On 10/24/2011 09:26 PM, Wes McKinney wrote: >>>> >>>> I've been using >>>> >>>> ndarray[uint8_t, cast=True] bool_arr >>>> >>>> to work with dtype=bool arrays in Cython lately. When testing using >>>> Python 2.5 / NumPy 1.6.1 on Windows, I'm getting "unknown dtype code >>>> in numpy.pxd (0)". Everything works fine with Python 2.6/2.7 and NumPy >>>> 1.6.1. This is with Cython 0.15.1. >>>> >>>> Any advice or do I have to (very unhappily) work around this? >>> >>> Is this a recent bug in Cython? Try to bisect the the Cython release (and >>> if >>> it turns out to be Cython, possible commit). >>> >>> Dag Sverre >>> _______________________________________________ >>> cython-devel mailing list >>> cython-devel@python.org >>> http://mail.python.org/mailman/listinfo/cython-devel >>> >> >> I'll check the HEAD revision and bisect if I can, don't have a lot of >> time-- it's just strange that it's Python 2.5 only. > > So the difference between Python 2.5 and 2.6 is that in 2.5 the > __getbuffer__ in numpy.pxd will be called, whereas in Python 2.6, NumPy is > able to do the job itself. (PEP 3118) > > Which means...that there's likely a bug in __getbuffer__ in numpy.pxd. You > can debug > > If you do have time, that's the place to start inserting print statements > etc. to debug this. > > It's difficult to say more without a copy&paste directly from your terminal. > > Dag Sverre > _______________________________________________ > cython-devel mailing list > cython-devel@python.org > http://mail.python.org/mailman/listinfo/cython-devel >
I need pandas to build off of a released version of Cython so I am just going to have to work around this by doing taking views of boolean arrays as np.uint8. I wouldn't mind dropping Python 2.5 support altogether but some people might not like that. _______________________________________________ cython-devel mailing list cython-devel@python.org http://mail.python.org/mailman/listinfo/cython-devel
