mark florisson, 03.01.2014 23:28: > On 3 January 2014 18:22, Stefan Behnel wrote: >> I enabled the NumPy build for our Py3.3 test runs and while I was at it, I >> got it to use the latest NumPy release 1.8. This made one of the tests fail: >> >> """ >> Traceback (most recent call last): >> File ".../doctest.py", line 1313, in __run >> compileflags, 1), test.globs) >> File "<doctest relaxed_strides.__test__.test_one_sized (line >> 29)[3]>", line 1, in <module> >> test_one_sized(a)[0] >> File "relaxed_strides.pyx", line 38, in >> relaxed_strides.test_one_sized (relaxed_strides.cpp:1414) >> File "stringsource", line 622, in View.MemoryView.memoryview_cwrapper >> (relaxed_strides.cpp:7568) >> File "stringsource", line 327, in >> View.MemoryView.memoryview.__cinit__ (relaxed_strides.cpp:3717) >> >> ValueError: ndarray is not C-contiguous >> """ >> >> https://sage.math.washington.edu:8091/hudson/job/cython-devel-tests/1787/ARCH=m64,BACKEND=cpp,PYVERSION=py33m/console >> >> According to the comments in the test file and the corresponding NumPy pull >> request, this seems to be somewhat expected. >> >> https://github.com/cython/cython/blob/master/tests/memoryview/relaxed_strides.pyx >> >> https://github.com/numpy/numpy/pull/3162 >> >> Does someone know enough about this to figure out what to do? > > It seems to come from the call to __Pyx_GetBuffer, which is > PyObject_GetBuffer in python 3. Maybe this is Python 3 not checking > for an extent of 1, but instead only checking the stride (which is a > multiple of the itemsize)?
No, Py3 doesn't do any validation here, it does a straight call into the object's slot function, i.e. into the NumPy array itself. So, the question is: who's wrong here? The test or NumPy? Hmm, or maybe just me. I didn't define the NPY_RELAXED_STRIDES_CHECKING environment variable for the NumPy build. Let's try that first. http://docs.scipy.org/doc/numpy/release.html#npy-relaxed-strides-checking Stefan _______________________________________________ cython-devel mailing list cython-devel@python.org https://mail.python.org/mailman/listinfo/cython-devel
