Date: Mon, 17 Oct 2016 18:55:56 +0200 From: Gerhard Schmidt <schmidt@ze.tum.de> To: Ruslan Makhmatkhanov <rm@FreeBSD.org>, python@FreeBSD.org Subject: Re: Introducing python3 into user system Message-ID: <6a089da3-d5df-fe5e-39b5-511abe5dc636@ze.tum.de> In-Reply-To: <0bd51f3b-e03b-2ea8-5c7b-1d108e78f2da@FreeBSD.org> References: <c7c2d8eb-e512-b118-c432-25ca3ee094db@FreeBSD.org> <5893aa6d-5e29-81b5-9685-a04ab8260bcb@ze.tum.de> <60f3bedb-8f57-2703-7ee9-736fc26ff9d0@yandex.ru> <a785c1ad-345e-8074-4f5a-3fc8af85f494@ze.tum.de> <0bd51f3b-e03b-2ea8-5c7b-1d108e78f2da@FreeBSD.org>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --Xdv2rtQgcBjkL7rn7gMPNFSHj6k97rdqo Content-Type: multipart/mixed; boundary="aMViqxWLVBoNoLfx29p8FFG4uJxTolRVn" From: Gerhard Schmidt <schmidt@ze.tum.de> To: Ruslan Makhmatkhanov <rm@FreeBSD.org>, python@FreeBSD.org Message-ID: <6a089da3-d5df-fe5e-39b5-511abe5dc636@ze.tum.de> Subject: Re: Introducing python3 into user system References: <c7c2d8eb-e512-b118-c432-25ca3ee094db@FreeBSD.org> <5893aa6d-5e29-81b5-9685-a04ab8260bcb@ze.tum.de> <60f3bedb-8f57-2703-7ee9-736fc26ff9d0@yandex.ru> <a785c1ad-345e-8074-4f5a-3fc8af85f494@ze.tum.de> <0bd51f3b-e03b-2ea8-5c7b-1d108e78f2da@FreeBSD.org> In-Reply-To: <0bd51f3b-e03b-2ea8-5c7b-1d108e78f2da@FreeBSD.org> --aMViqxWLVBoNoLfx29p8FFG4uJxTolRVn Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Am 17.10.2016 um 13:46 schrieb Ruslan Makhmatkhanov: > Gerhard Schmidt wrote on 10/17/2016 14:27: >> Am 17.10.2016 um 12:39 schrieb Ruslan Makhmatkhanov: >>> Gerhard Schmidt wrote on 10/17/2016 11:07: >>>> Am 16.10.2016 um 21:22 schrieb Ruslan Makhmatkhanov: >>>>> - if port has a build dependency upon python and it can be built bo= th >>>>> with python2 and python3, force it to build with python3 >>>>> - if some standalone application can be running both with python2 a= nd >>>>> python3 and it have equivalent python3 dependencies, force it to be= >>>>> run >>>>> with python3 >>>> >>>> What do you mean by "force it"?. >>> >>> I mean set USES=3Dpython3.3+ for such ports. >> >> This will install python3.5 on this system regardless if there is a >> working python2.x installation, which is exactly what is wrong. I am a= >> software developer who runs legacy systems on python2.7. Forcing ports= >> that are able to run with python2.7 to install python3.5 will most >> probably break my systems. USES should always represent the minimum >> requirement not something so feel is something it should use. >=20 > I'm not sure how it will break anything if conditions, listed in my > initial message are complied. Would you please elaborate on that and > provide an example of such a breakage? python3.5 and python2.7 can > co-exist. And I just want to remind that we are talking only about > standalone applications now, with no external dependencies, and also > about ports that use python only at build phase. Not everybody what's python3.x on his system. So way force 3.5 when it's not needed. Why should I install python 3.5 when i already have python2.7 installed and all the dependencies there. There is no sense in installing packages twice! As I said. Make python 3.5 the default if python 2.7 is not installed but don't force 3.x when there is no real reason. Just getting more installations isn't a valid reason to risk break it for someone. Regards Estartu --aMViqxWLVBoNoLfx29p8FFG4uJxTolRVn-- --Xdv2rtQgcBjkL7rn7gMPNFSHj6k97rdqo Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIvBAEBCAAZBQJYBQKcEhxzY2htaWR0QHplLnR1bS5kZQAKCRB00kPMRXANo9Kz D/9Je82UDqfKVaj1uviYyoIuPr5lqR2cfcfCAbyCvrTSv3EBsfPF1XBvfdlDSSxT AaAOufGNLJgaw7UyNEm0WwsZBTAjr8XoNBm4cvqNpXNXDpvrFep3bH5AO6ongfNM wINnwwEMywq1SvCGYtAFgYS/n4pOEdDfSrLLyAo/xHefsEXpV2Vz274iKBd2Btrq ndE6asS3JG0I0wU0XMXster/rG+6+JKSu7CVnzbvSyaEpXnnGbyawWw/0kbFS0Lt /Bv1/y98hQ0g0h7CoLLrruDwP4BvcrFWyZdqPS4kN2OE+LE93tjYpX03ArXqLTfK dHA3/7SecaXU+liiWufdnrzCRbKPRxDZ0S1as9FgdeFZKALDMsTZiD50oH1CgPnU DElKU8hWXN65N73TUCaQq7gh/0yphnYNrZrJ7P5nq/YBmZITanDMvk/ZzuTFsa0L gNHL904pZrD5geiLqnkBC5Q0Y57xjz4Gu9LwUSOTjXZTiY8bGYW5IhhrllPKttiB XL8q9U9oEaD2ZZUwhvmtoyOLF5zraEyrt1TT9CPK8Y7zZ8EwB8rCcg0xh9D/N4w1 d3j1NyA9SVZIULdz3Zds+6qlrQ3rSYVKyb8yyd9o0BnbkdMM6DFRpIne2H4tuUO1 pJplkYsPLQ91wSJlDimgGuLo7QS1cdVZ0YBJANqtEPofag== =Z96O -----END PGP SIGNATURE----- --Xdv2rtQgcBjkL7rn7gMPNFSHj6k97rdqo--
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