On 9 April 2013 14:46, Nathaniel Smith <n...@pobox.com> wrote: > On Tue, Apr 9, 2013 at 2:11 PM, Stefan Behnel <stefan...@behnel.de> wrote: > > Nathaniel Smith, 09.04.2013 15:00: > >> On 9 Apr 2013 13:50, "Stefan Behnel" wrote: > >>> Nathaniel Smith, 09.04.2013 14:25: > >>> There's also the problem of dependency hell and getting rid of old > modules > >>> once they are no longer used on the user side. And also, how to get > them > >>> there in the first place. Having one package overwrite the files of > >>> another during its installation is just asking for trouble. > >> > >> The system I described does not involve the addition of any new files to > >> any package. > > > > I take it then that you were envisaging a separate "cython-runtime" > package > > on PyPI that Cython compiled modules would have to depend on? > > No, I must have been unclear -- I envisage that each cython-compiled > module continues to contain all the code it depends on (just like > now). But, the first cython-compiled module that is imported tweaks > sys.modules *as if* there were a separate cython-runtime package, and > sticks the necessary pieces (like the memoryview TypeObject) into this > module, and later modules import it from there. > > There's no additional dependencies anywhere. You have to be careful to > make sure you version the runtime module appropriately so that you > don't end up with a module compiled with cython version X using the > runtime injected by a module compiled with the incompatible cython > version Y, but this is no harder than any other versioning problem. > Just make sure to change the runtime module name whenever you break > compatibility. > > -n > _______________________________________________ > cython-devel mailing list > cython-devel@python.org > http://mail.python.org/mailman/listinfo/cython-devel >
I'd actually really like it if I could compile a trivial module in under a hundred lines of generated code :) I.e. allow both a cython header and a seperately installable runtime, each of which is optional.
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