> Managing backwards compatibility is probably the single most important thing > we can do here. > There are almost 800,000 files on PyPI that someone can download and install, > telling all > of them they need to switch to some new system or things are going to break > for them is > simply not tenable.
I agree. But if packaging is going at some point to break out of allowing completely bespoke code to run at installation time (i.e. executable code like a free-for-all setup.py, vs. something declarative and thus more restrictive) then IMO you have to sacrifice 100% backwards compatibility. See my comment in my other post about the ability to install old releases - I made that a goal of my experiments with the parallel metadata, to not require anything other than a declarative setup() in order to be able to install stuff using just the metadata, so that nobody has to switch anything in a big-bang style, but could transition over to a newer system at their leisure. Regards, Vinay Sajip _______________________________________________ Distutils-SIG maillist - Distutils-SIG@python.org https://mail.python.org/mailman/listinfo/distutils-sig
