[Cython] longintrepr.h issues with MinGW
Given that https://bugs.python.org/issue4709 results in extension modules that seem to work, but silently produce completely incorrect answers, I'm thinking we should either disable our long-unpacking code on these platforms, or at the very least give a runtime error if we detect issues like sizeof(void*) != SIZEOF_VOID_P (or both). I'm not sure what has made this issue pop up more lately (Python 3), but perhaps we should even consider releasing bugfixes for previous Cython versions. - Robert ___ cython-devel mailing list cython-devel@python.org https://mail.python.org/mailman/listinfo/cython-devel
Re: [Cython] Failing test reimport_from_subinterpreter
On 2018-10-21 15:44, Stefan Behnel wrote:
Maybe print "sys.path" and "sys.meta_path" in a couple of places?
So I did and the problem is indeed related to sys.path.
When running *only* the reimport_from_subinterpreter tests, sys.path
starts with the following entries:
''
'/home/jdemeyer/sage-test/local/var/tmp/sage/build/cython-0.29/src/TEST_TMP/support/lib.linux-ppc64le-2.7'
'/home/jdemeyer/sage-test/local/var/tmp/sage/build/cython-0.29/src'
'/home/jdemeyer/sage-test/local/var/tmp/sage/build/cython-0.29/src/TEST_TMP/run/reimport_from_subinterpreter'
# <
'/home/jdemeyer/sage-test/local/lib/python27.zip'
'/home/jdemeyer/sage-test/local/lib/python2.7'
When running all tests, sys.path starts with the following entries:
''
'/home/jdemeyer/sage-test/local/var/tmp/sage/build/cython-0.29/src/TEST_TMP/support/lib.linux-ppc64le-2.7'
'/home/jdemeyer/sage-test/local/var/tmp/sage/build/cython-0.29/src'
'/home/jdemeyer/sage-test/local' # <
'/home/jdemeyer/sage-test/local/lib/python27.zip'
'/home/jdemeyer/sage-test/local/lib/python2.7'
The entries marked with # < are different but I don't know why.
Further suggestions for debugging are more than welcome...
In both cases, the initial entry ('') is dropped in the sub-interpreter.
I assume that this is a feature.
___
cython-devel mailing list
cython-devel@python.org
https://mail.python.org/mailman/listinfo/cython-devel
Re: [Cython] Failing test reimport_from_subinterpreter
n 2018-10-22 16:44, Jeroen Demeyer wrote: The entries marked with # < are different but I don't know why. There is a difference in $PYTHONPATH. When it works, PYTHONPATH equals '/home/jdemeyer/sage-test/local/var/tmp/sage/build/cython-0.29/src/TEST_TMP/support/lib.linux-ppc64le-2.7:/home/jdemeyer/sage-test/local/var/tmp/sage/build/cython-0.29/src:' Note the trailing colon, which is what makes everything work since that gets translated to the current working directory! When it fails, PYTHONPATH equals '/home/jdemeyer/sage-test/local/var/tmp/sage/build/cython-0.29/src/TEST_TMP/support/lib.linux-ppc64le-2.7:/home/jdemeyer/sage-test/local/var/tmp/sage/build/cython-0.29/src:/home/jdemeyer/sage-test/local' ...which has sys.prefix added for some reason. ___ cython-devel mailing list cython-devel@python.org https://mail.python.org/mailman/listinfo/cython-devel
Re: [Cython] Failing test reimport_from_subinterpreter
OK, I finished analyzing the problem. It's a combination of: 1. the Sage wrapper around the Cython installer setting PYTHONPATH 2. the reimport_from_subinterpreter test failing if PYTHONPATH is set I'll open a PR quick. ___ cython-devel mailing list cython-devel@python.org https://mail.python.org/mailman/listinfo/cython-devel
