Gentoo Archives: gentoo-dev

From: Eddie Chapman <eddie@××××.net>
To: gentoo-dev@l.g.o, Benda Xu <heroxbd@g.o>
Subject: Re: [gentoo-dev] Migrate away from python-2 or not
Date: Mon, 25 Nov 2019 07:41:32
In Reply to: [gentoo-dev] Migrate away from python-2 or not by Benda Xu
1 On 24/11/2019 12:15, Benda Xu wrote:
2 > Given the python-2 countdown deadline being 2020-01-01, a month away,
3 > shall we get rid of python-2?
6 > If the answer is no, to avoid holding back new versions having only
7 > python3, such as bug 671796 for dev-python/matplotlib bump, old versions
8 > with python_targets_python2_7 and new versions without should be
9 > co-installable into different SLOTs.
11 Rather than slots, perhaps a separate directory hierarchy containing
12 only python2 + deps (/opt/python2 ?) i.e. it's just a --prefix change
14 It's ugly I know but the advantage is the majority of installations with
15 python3 don't see any change and they'll have a clean python3 only /usr.
16 Anyone who wants/needs python2 will be happy to put up with the ugliness
17 and pull all the duplicate deps in (yes, have duplicate set of ebuilds
18 for python2 only deps - dev-python2/* - forked off and with the
19 understanding that no new features, this is a semi-temporary situation
20 until python2 can finally die properly). Also, I think it helps everyone
21 psychologically to have a very visible separation.
23 Not being a dev and with my lack of a deep understanding of python
24 there's probably an big reason this idea is a non-starter, so just
25 throwing it out there.