Nikita Nemkin, 09.04.2013 18:30: > On Tue, 09 Apr 2013 21:21:25 +0600, Stefan Behnel wrote: >> Oh, and even simpler, you can just stick multiple Cython modules with their >> module init functions into one big shared library and have the "main" init >> function of that module call the others. That will stick them into >> sys.modules as a side effect, so it's not really different from going >> through Python's import machinery for each module separately (just way more >> efficient - at least if you really need all of the modules...). > > That's exactly what I meant. > >> There may be glitches with stuff like "__file__" and friends, but that >> should not be any worse than the current way of workings. > > I know of two "glitches": > > 1) Py_InitModule4 expects qualified module name to be provided via > the _Py_PackageContext global, in order to initialize new module's > __name__. > Of course __name__ can also be set manually afterwards.
Cython could easily do that. It needs to know the FQMN at compile time anyway, so adding a C compile time switch that sets _Py_PackageContext before calling that function is trivial. (Would also have to store and restore the old value to support recursive imports, obviously) > 2) "Top level" init function does not have access to it's own __file__, > but it has to initialize submodules' __file__ somehow. > My solution is to query the current shared library name directly > from the OS (GetModuleFileName() on Windows, dladdr() on everything else). Yep: http://bugs.python.org/issue13429 Sadly, the new module init mechanism in Py3 wasn't designed to address these issues. > I'm interested in implementing this feature someday. For now, doing it > manually is good enough. I assume you're aware of the cython_freeze tool? That currently only works for embedding Python in a Cython compiled executable. Supporting this also (automatically) for a build where you have multiple .pyx files in a single distutils Extension() would be great. So, please do. And don't wait too long. Anything that can be automated should be. Stefan _______________________________________________ cython-devel mailing list cython-devel@python.org http://mail.python.org/mailman/listinfo/cython-devel
