On 12 April 2013 13:20, Matěj Laitl <ma...@laitl.cz> wrote: > On 8. 4. 2013 Matěj Laitl wrote: > > 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 > > Bump. Anything else I can provide to help with getting this fixed in 0.19? > > Ragards, > Matěj >
Thanks for the bump, I merged it. Stefan, do you want to wait with 0.19 for the strides fix? We don't know when 0.20 would be, I'd like to give it a go this weekend.
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