Wed, 17 Nov 2010 08:40:50 +0100, Laurent Gautier wrote: [clip] > __main__:1: RuntimeWarning: Item size computed from the PEP 3118 buffer > format string does not match the actual item size. [clip] > I tried tracing a bit further but I am a little confused by what is the > intent (a lot of nested calls).
Numpy is warning you that the view that you passed to it is inconsistent, and it indicates that it refuses to consider it as a PEP 3118 buffer. If you use it on Python 2.x, it probably falls back to using the legacy buffer interface which does not care about the format string. > my buffer format is 'f', and the view has itemsize set as: > view->itemsize = sizeof(double); > > Any pointer regarding what might be going on ? See http://docs.python.org/library/struct.html#format-strings The format 'f' means 32-bit float, so the view itemsize should be sizeof(float) and not sizeof(double). If your view really contains floats in sizeof(double) bytes, the buffer format string probably should indicate the padding. -- Pauli Virtanen _______________________________________________ NumPy-Discussion mailing list [email protected] http://mail.scipy.org/mailman/listinfo/numpy-discussion
