Hi cython-devel and Mark, I was getting > Fatal Python error: Acquisition count is 0 (line XYZ) when I was doing > cdef class MemViewContainer: > cdef double[:, :] A > > cdef a_method(self): > self.A = np.eye(2) > some_function(self.A.T) > some_function(self.A.T)
I have found out that it is caused by the self.A.T expression - Cython emits __PYX_XDEC_MEMVIEW() after the call, but no __PYX_INC_MEMVIEW() before the call. This doesn't happen if the memoryview is a function-local variable. Proper test case is in the pull request [1] along with an ad-hoc patch that fixes the problem here, but needs review whether it is actually correct. I'd be very grateful if a fix for this problem could get it into Cython 0.19. Cython version: 0.19b1 3a6b9856187d7e490e08 [1] https://github.com/cython/cython/pull/201 Regards, Matěj _______________________________________________ cython-devel mailing list cython-devel@python.org http://mail.python.org/mailman/listinfo/cython-devel
