Control: retitle -1 krita: Please switch from sip4 to sip6 Hi again! On Mon, Sep 21, 2020 at 02:24:04PM +0300, Dmitry Shachnev wrote: > I have an update on PyQt5 vs. SIP 5 status. > > Unfortunately, things got a bit more complicated recently. Upstream is > going to release SIP 6 in the beginning of next year, which will be not > co-installable together with SIP 5, and which will not have /usr/bin/sip5 > “legacy” script: > > https://www.riverbankcomputing.com/pipermail/pyqt/2020-September/043201.html > https://www.riverbankcomputing.com/pipermail/pyqt/2020-September/043162.html > > sip5 was a script to ease upgrades from SIP 4, and it has a set of options > similar to SIP 4's /usr/bin/sip. Upstream now recommends using their new > tools, sip-build and similar ones. See the documentation: > > https://www.riverbankcomputing.com/static/Docs/sip/ > > This means that next year we will have SIP 4 and SIP 6 in Debian, but not > SIP 5. My upstream work on Krita made use of /usr/bin/sip5, so it will need to > be ported to the new tools in order to support SIP 6 (and PyQt6). > > At the same time, upstream says that it will remain possible to compile > applications with SIP 4 even when PyQt5 uses newer SIP. So now I think the > best plan is: > > - Please keep using SIP 4 for Krita for now. > - Please test that it still works fine with PyQt5 in experimental. > - Ask upstream to migrate to the new tools to be prepared for SIP 6 / PyQt6. Another update on this. It looks like upstream integrated proper support [1] for SIP 5+ a couple of years ago, and a recent commit [2] indicates that it builds with the latest version, 6.8, too. So please switch from SIP 4 to SIP 6, maybe picking the needed commit(s) from upstream. From packaging standpoint that will mean: - Build-depending on sip-tools and python3-sipbuild instead of python3-sip-dev. - Dropping Recommends: python3-sip. Recommends already has python3-pyqt5, which ensures the presence of proper SIP runtime. SIP 4 has an RC bug related to Python 3.12 [3] and it's unlikely to be fixed. [1]: https://invent.kde.org/graphics/krita/-/commit/5bb4874ad04b771a0fec12827de748780b5b395b [2]: https://invent.kde.org/graphics/krita/-/commit/2d71c47661d43a4e3c1ab0c27803de980bdf2bb2 [3]: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1059648 -- Dmitry Shachnev
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