I just ran across the problem of priorities with ndarrays again and it keeps biting me. I did once ago a workaround to get my ``undarray`` class's methods be called when being the second operand of e.g. <ndarray> + <undarray>. But since I wrote it, always Python crashes on exit with the message:
Python-32(68665) malloc: *** error for object 0x239680: incorrect checksum for freed object - object was probably modified after being freed. *** set a breakpoint in malloc_error_break to debug (Of course only if I imported the module. Occasionally I also observed Bus errors, and even segfaults.) I overloaded the numpy ops via numpy.set_numeric_ops() with self-written classes, which are *not* derived from numpy.ufunc, and do not resemble numpy ufuncs completely. So I want to do it properly this time. I therefore started with writing a Letter of Intent, and put it online on http://github.com/friedrichromstedt/priops . Opinions? Friedrich P.S.: I will start coding anyway, but it would be nice. P.P.S.: The package this originates from is also online, under http://github.com/friedrichromstedt/upy, or http://upy.sourceforge.net. I will probably create a small example script demonstrating the crash. _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
