Path: csiph.com!news.mixmin.net!border2.nntp.ams1.giganews.com!nntp.giganews.com!newsfeed.xs4all.nl!newsfeed9.news.xs4all.nl!bofh.it!news.nic.it!robomod From: Wookey Newsgroups: linux.debian.maint.python Subject: Re: Multiple package versions in PPA Date: Tue, 21 Sep 2021 04:20:01 +0200 Message-ID: References: X-Mailbox-Line: From debian-python-request@lists.debian.org Tue Sep 21 02:12:11 2021 Old-Return-Path: X-Amavis-Spam-Status: No, score=-14.3 tagged_above=-10000 required=5.3 tests=[BAYES_00=-2, LDO_WHITELIST=-5, PGPSIGNATURE=-5, RCVD_IN_DNSWL_MED=-2.3] autolearn=ham autolearn_force=no X-Policyd-Weight: using cached result; rate: -4.6 Mail-Followup-To: Francis Murtagh , debian-python MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="ScurbD2uZQjqtPeh" Content-Disposition: inline Organization: Wookware User-Agent: Mutt/1.10.1 (2018-07-13) X-Mailing-List: archive/latest/19359 List-ID: List-URL: List-Archive: https://lists.debian.org/msgid-search/20210921021156.GS17067@mail.wookware.org Approved: robomod@news.nic.it Lines: 71 Sender: robomod@news.nic.it X-Original-Cc: debian-python X-Original-Date: Tue, 21 Sep 2021 03:11:56 +0100 X-Original-Message-ID: <20210921021156.GS17067@mail.wookware.org> X-Original-References: Xref: csiph.com linux.debian.maint.python:13563 --ScurbD2uZQjqtPeh Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2021-09-13 16:00 +0000, Francis Murtagh wrote: > Hi,=20 >=20 > I've added a python package called python3-pyarmnn to Debian > (https://tracker.debian.org/pkg/armnn) but also have it pushed to a Ub= untu > Launchpad PPA > (https://launchpad.net/~armnn/+archive/ubuntu/ppa/+packages). > When I push new versions of the packaging it seems to overwrite the > previous, I'm assuming this is by design as the archive should only ha= ve > one version of the software at a time. Correct.=20 > However, this python3-pyarmnn package is just a wrapper for a C++ libr= ary > libarmnn26, 26 being its major version. > So from the PPA the user can apt install libarmnn26 or libarmnn25 etc,= but > if they install python3-pyarmnn it's always the latest and so that dra= gs > in the latest libarmnn i.e 26. Right. Normally in debian (and Ubuntu) we allow multiple versions of libraries so that things linked against the older library still work until everything is ugraded, and nothing is using the old library (then it can be removed, and often is automatically). But only one version of higher-level apps which use those libraries, normally linked against the latest library version available. What do users gain from being able to install a python3-pyarmnn linked against an older version of the library? You could do it by having python3-pyarmnn25 and python3-pyarmnn26 etc, but normally there is not enough benefit from this for it to be worth the effort. Do you just want to be able to do it for test purposes? If so you could just make multiple PPAs, and install python3-pyarmnn from the appropriate one? Wookey --=20 Principal hats: Linaro, Debian, Wookware, ARM http://wookware.org/ --ScurbD2uZQjqtPeh Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEER4nvI8Pe/wVWh5yq+4YyUahvnkcFAmFJP2cACgkQ+4YyUahv nke4FRAAyKqN9lmghhiXui+FOqGiNI1g7o4g1hZD0o+81hUV8rsgcVsPZ1kHZXJe JcW/DN8DzdsVROMoGWLHMDStkMe1H9AaDpCrViF/4Y49F19xm78Go+Fmj6CQX1CS BbKG/sDCTzjUrC8hHD2xuwUum98nDAaS9f0iWx6BI6ukKkZrAMnHwuAGXt9MU1+p GqW9klTMuITi+l9cFIdwL/HZbswxsMp/R07lVcm7YQekIwhGTn2Oe1+AQXXFoV+w fABQgQc9rQGMKEAyT6Dq5nFa43PNsuN+FraHVb4tVwB+c3O2shpqh2YWJu7dDXef dhrqUXChKf6eRgHXF47gqWgr5GjU7zDa/7ic09s6P732I8ti2xVUZEoolmN1aLiE ZoulImlpdISRyXBYJqH6oAg6eOm8bZ6JPw6zg2C0bTcQVDCaxBsSLV8QBDyVx3sp RFhg6q2AL8nYY4wWq6mlGTLmJCAsWYjh/T0Z0ccUuGJZR9iqeH6KRlyknUXHhAnR 8vdhRgy3fwy0SR1ODYLNcS2ThtU4Qv+NvNdvUMQe5HP/xsUoWQ6aY/oqdqzD85JT tDOOn4+UL8qDZgpAedcouZzgrJJs3tmB08ca9KFHaP48SdW5wBoVbTASpp7yeItR wIv0XI+QuK/9Bo3D23EF9kYczpoVLdXeB6PQzsPEdgqWcsuMxEU= =banI -----END PGP SIGNATURE----- --ScurbD2uZQjqtPeh--