On Thu, 19 Apr 2012 10:55:24 +0200 Stefan Behnel <stefan...@behnel.de> wrote: > > I noticed that there is a PEP (3154) and a GSoC proposal about improving > Pickle. Given the recent discussion on this list about using Cython for the > import module, I wonder if it wouldn't make even more sense to switch from > a C (accelerator) implementation to Cython for _pickle.
I think that's quite orthogonal to PEP 3154 (which shouldn't add a lot of new code IMHO). > Note that the approach won't be as simple as compiling pickle.py. _pickle > uses a lot of optimisations that only work at the C level, at least > efficiently. So the idea would be to rewrite _pickle in Cython instead. > It's currently about 6500 lines of C. Even if we divide that only by a > rather conservative factor of 3, we'd end up with some 2000 lines of Cython > code, all extracted straight from the existing C code. That sounds like > less than two weeks of work, maybe even if we add the marshal module to it. I think this all needs someone to demonstrate the benefits, in terms of both readability/maintainability, and performance. Also, while C is a low-level language, Cython is a different language than Python when you start using its optimization features. This means core developers have to learn that language. Regards Antoine. _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
