Hi Neal, Ray, Neal wrote: > The binary versions (.pyc and .pyo) are not compatible, their magic > number is different. I don't know the details, but if you want to > investigate yourself. Get a CVS version, cd python/dist/src ; cvs > diff -r r23 -r r24 Python/import.c > > That shows the magic number changing. You will need to read CVS logs > to figure out why. It's possible the numbers don't really *need* to > change. I see two comments in the logs are: > > * Bump the magic number to avoid sharing bytecode between 2.3 and 2.4. > Revise the long comment that explained details of the magic number > in gory detail. > > * With Guido's okay, bumped up the magic number so that this patch gets > widely exercised before the alpha goes out. > > There are other patches which may have bumped the magic number for > other reasons.
Thanks! >>Can somebody point me at this information please? > And I forgot to give you this link: > http://docs.python.org/whatsnew/whatsnew24.html That lists the changes. It's not clear (at least to me) whether these changes are incompatible. > BTW, this list probably isn't the best place to post this question. > comp.lang.python (python-list@python.org) is generally preferred for > details about implementation. Understood. I'll try there tomorrow. > If you are really interested in finding out more about Python, perhaps > you can come to the BayPIGGIES (Python Users Group) meeting at Google > tonight (7.30pm) in Mt. View. Contact me off-list if you want more > info. Thanks for the pointer. Unfortunately I have other plans for tonight. Raymond wrote: > The new LIST_APPEND opcode won't run on Py2.3. It was more a case of wondering whether Python 2.3.x .py, .pyo, .pyc files should "just work" with the Python 2.4.x run-time environment. We are not too concerned with 2.4.x files working with the Python 2.3.x runtime. This sort of binary incompatibly is common. _______________________________________________ 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
