[Python-Dev] sharing stdlib across python implementations (original) (raw)

Olemis Lang olemis at gmail.com
Wed Sep 30 17:37:02 CEST 2009

On Wed, Sep 30, 2009 at 9:43 AM, Antoine Pitrou <solipsis at pitrou.net> wrote:

Chris Withers <chris simplistix.co.uk> writes:

I'm on on stdlib-sig and I'm afraid I don't have the bandwidth to start on it, but I'd just like to throw in (yet again) that it would be great if the stdlib was actually a set of separate python packages with their own version metadata so that packaging tools could manage them, and upgrade them independently of python packages when there are bug fixes. This sounds like a bad idea to me. Each Python release is tested and debugged as a whole. If you have a lot of possible combinations (module A version 1.1 with module B version 1.2, etc.), it becomes impossible for us to ensure proper QA for the whole and as a result the quality might become lower, rather than higher.

You are right here !

-1 for splitting the test code and test suite

but I still think it could be a good idea ...

(of course, if we rigorously enforce APIs and preserve compatibility,

-1

this might not be a real issue; but our compatibility story is a bit irregular, IMHO)

mainly because of this ;o)

But it's still possible to use a parameterized setup.py and leave things just like they are right now.

For instance, I have started something like that has been dome by the FLiOOPS project [1]_ (and possibly others, it's just an example ;o). In the SVN repository there's a single trunk containing the whole PyOOP package (which is not complete BTW). Inside of it there are separate setup.py files for other distributions too :

When I create (SVN) tags for each package, I have to rename it (extra-overhead), and I once global metadata changes, then I have to change them all

PS: Another alternative for stdlib could be to have common data in setup.cfg and separate setup.py scripts, but I don't really like this one ...

-- Regards,

Olemis.

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