[Python-ideas] improve compatibility

[Liam Marsh]

hello,
the problem is that even with extreme precaution, it is impossible to keep
ALL modules compatible from a version to another.
what I want to ask is this:
-some "packs" which can, like py-compile, generate .pyc files, but using
"old" versions of the default library, and of __builtins__.
-One will go with every minor version and will be optionnal in the
installation
-any imported py file will be able to choose which version it wants with
the
   "#! py recommended version X.X" or
   "#! py mandatory version X.X" commentaries at the begining of the file.

thank you and have a nice day/evening/night.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/python-ideas/attachments/20141128/cab1e664/attachment.html>