Nick Coghlan <ncogh...@gmail.com> wrote: > I took Jeff's question as being slightly different and applying in the > following situations:
I think I attempted to answer the same thing. :) > 1. If the consumer has NOT requested format data, can the provider > return accurate format data anyway, if that's easier than returning > NULL but is consistent with doing so? No, this is definitely disallowed by the PEP (PyBUF_FORMAT): "If format is not explicitly requested then the format must be returned as NULL (which means "B", or unsigned bytes)." > 2. The consumer has NOT requested shape data, can shape data be > provided anyway, if that's easier than returning NULL but is > consistent with doing so? Also explicitly disallowed (PyBUF_ND): "If this is not given then shape will be NULL." > 3. The consumer has NOT requested strides data, can strides data be > provided anyway, if that's easier than returning NULL but is > consistent with doing so? This is not explicitly disallowed, but IMO the intent is that strides should also be NULL in that case. For example, strides==NULL might be used for a quick C-contiguity test. Stefan Krah _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
