Christian Heimes added the comment: memory_hash has to convert buffers unless the buffer is a single-dimensional, C-style and contiguous buffer. A NumPy matrix has more than one dimension, so it must be converted.
https://hg.python.org/cpython/file/tip/Objects/memoryobject.c#l2854 if (!MV_C_CONTIGUOUS(self->flags)) { mem = PyMem_Malloc(view->len); if (mem == NULL) { PyErr_NoMemory(); return -1; } if (buffer_to_contiguous(mem, view, 'C') < 0) { PyMem_Free(mem); return -1; } } ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue28055> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
