Jeroen Demeyer schrieb am 09.01.19 um 15:43: > (reviving this thread after I thought about it some more...) > > As I mentioned in the original post, I want something like __dealloc__ but > with access to a particular cdef attribute (representing a Python object). > Since Python attributes of cdef classes may have been cleared by tp_clear, > they cannot be accessed in __dealloc__. > > I suggested hooking tp_clear to do the cleanup but maybe there is a simpler > solution: do that cleanup in __dealloc__ anyway but make sure that this > specific attribute is not cleared in tp_clear. > > So really I want something like @cython.no_gc_clear (just found out about > that now) but for a specific attribute only. > > There could be new syntax like > > cdef class X: > cdef no_gc_clear object attr > > This is a better solution than a blanket @cython.no_gc_clear: in my code, > I'm sure that there are no reference cycles involving only that attribute, > but there may be reference cycles involving other attributes. > > This should be fairly easy to implement. Any comments before I submit a PR?
I would like to avoid adding Cython specific features that are better served by the general finalisation mechanism of PEP-442. Stefan _______________________________________________ cython-devel mailing list cython-devel@python.org https://mail.python.org/mailman/listinfo/cython-devel
