Robert Bradshaw, 02.05.2012 09:15: > On Sun, Apr 29, 2012 at 11:48 PM, Stefan Behnel wrote: >> mark florisson, 28.04.2012 21:57: >>> On 28 April 2012 19:50, Stefan Behnel wrote: >>>> mark florisson, 28.04.2012 20:33: >>>>> I think each module should have its own language level, so I think >>>>> that's a bug. I think the rules should be: >>>>> >>>>> - if passed as command line argument, use that for all cimported >>>>> modules, unless they define their only language level through the >>>>> directive >>>>> - if set as a directive, the language level will apply only to that >>>>> module >>>> >>>> That's how it works. We don't run the tests with language level 3 in >>>> Jenkins because the majority of the tests is not meant to be run with Py3 >>>> semantics. Maybe it's time to add a numpy_cy3 test. >>>> >>>> If there are more problems than just this (which was a bug in numpy.pxd), >>>> we may consider setting language level 2 explicitly in numpy.pxd. >>> >>> Ah, great. Do we have any documentation for that? >> >> We do now. ;) >> >> However, I'm not sure cimported .pxd files should always inherit the >> language_level setting. It's somewhat of a grey area because user provided >> .pxd files would benefit from it since they likely all use the same >> language level as the main module, whereas the Cython shipped (and >> otherwise globally installed) .pxd files wouldn't gain anything and could >> potentially break. >> >> I think we may want to keep the current behaviour and set the language >> level explicitly in the few shipped .pxd files that are not language level >> agnostic (i.e. those that actually contain code). > > +1, I'm not worried about breaking the ones that ship with Cython, as > we can manually specify the language level on those if necessary. This > does have implications for automatically cimporting on import when a > .pxd is found though, especially if one pulls in .pxd files from > another project.
Right. Given that some people have started distributing .pxd files for some C libraries on PyPI, we should advertise it in a visible part of the documentation that authors of .pxd files have to take care to define a language level if they depend on it. Stefan _______________________________________________ cython-devel mailing list cython-devel@python.org http://mail.python.org/mailman/listinfo/cython-devel
