MobileRead Forums - View Single Post - Unable to find file "QtWidgets/QtWidgetsmod.sip"

eschwartz · 08-01-2021, 04:45 AM

*puts on distro packaging hat*

I would suggest that Gentoo take a look at how Arch Linux packages sip and PyQt5. I took a hasty look at the ebuilds and a massive red flag to me, is that Gentoo appears to be using sip4 and configure.py in order to build modern versions of PyQt5, which is IIRC entirely unsupported by PyQt5 and anyways involves using sip4 so uhhhhhhhhhhhh.

Can't possibly have a problem with sip-build as produced by the gentoo package, when your current technology stack doesn't use sip-build.

Calibre does use sip5, even in the ebuilds, so they're actually mixing sip4 and sip5 in the technology stack. This is technically not a modification of anything, and there is nothing to undo. It is, however, butchered.

I recommend the Gentoo developers seek guidance on the PyQt5 mailing list regarding the correct way to fundamentally package the technology stack, rather than deferring bugs to users and then again to arbitrary downstream projects that use PyQt5 as an ordinary consumer rather than somehow being the go-to experts in packaging PyQt5.

Failing that, they could defer bugs to users, and those users could seek guidance on the PyQt5 mailing list.

Failing that, either the Gentoo maintainers or the users could read the PyQt5 documentation (either the website documentation or the README file in the source tarball), which instructs users installing from source to use sip-install and does not mention configure.py at all.

Any or all of these attempts at seeking resolution are both:

more productive
less "rude" (???)

than interrogating the developer of one software project, about why a different software project isn't working.

After you've already been told by that developer, that the problem lies in the different software project.

Look, I could understand asking here in the first place during initial information gathering, but after having been told where the root of the problem is, there is simply no call to continue to reply with "Let me rephrase the question, so perhaps you can provide a more useful answer." or " it made sense to seek advice from you". The lot of you have sought advice, received it, and are roundly ignoring it.

It's not Kovid's job to know, figure out, or explain why the PyQt5 installation on Gentoo is broken. Honestly, it's not my job either, but at least it's adjacent to my job even if my distro actually works fine.

08-01-2021, 04:45 AM	#14
eschwartz Ex-Helpdesk Junkie Posts: 19,421 Karma: 85400180 Join Date: Nov 2012 Location: The Beaten Path, USA, Roundworld, This Side of Infinity Device: Kindle Touch fw5.3.7 (Wifi only)	puts on distro packaging hat I would suggest that Gentoo take a look at how Arch Linux packages sip and PyQt5. I took a hasty look at the ebuilds and a massive red flag to me, is that Gentoo appears to be using sip4 and configure.py in order to build modern versions of PyQt5, which is IIRC entirely unsupported by PyQt5 and anyways involves using sip4 so uhhhhhhhhhhhh. Can't possibly have a problem with sip-build as produced by the gentoo package, when your current technology stack doesn't use sip-build. Calibre does use sip5, even in the ebuilds, so they're actually mixing sip4 and sip5 in the technology stack. This is technically not a modification of anything, and there is nothing to undo. It is, however, butchered. I recommend the Gentoo developers seek guidance on the PyQt5 mailing list regarding the correct way to fundamentally package the technology stack, rather than deferring bugs to users and then again to arbitrary downstream projects that use PyQt5 as an ordinary consumer rather than somehow being the go-to experts in packaging PyQt5. Failing that, they could defer bugs to users, and those users could seek guidance on the PyQt5 mailing list. Failing that, either the Gentoo maintainers or the users could read the PyQt5 documentation (either the website documentation or the README file in the source tarball), which instructs users installing from source to use sip-install and does not mention configure.py at all. Any or all of these attempts at seeking resolution are both: more productive less "rude" (???) than interrogating the developer of one software project, about why a different software project isn't working. After you've already been told by that developer, that the problem lies in the different software project. Look, I could understand asking here in the first place during initial information gathering, but after having been told where the root of the problem is, there is simply no call to continue to reply with "Let me rephrase the question, so perhaps you can provide a more useful answer." or " it made sense to seek advice from you". The lot of you have sought advice, received it, and are roundly ignoring it. It's not Kovid's job to know, figure out, or explain why the PyQt5 installation on Gentoo is broken. Honestly, it's not my job either, but at least it's adjacent to my job even if my distro actually works fine. Last edited by eschwartz; 08-01-2021 at 11:43 AM.