dev-python/ply-3.11-r200:python2/3.11 cause dev-python/pycparser-2.21 always need rebuild when update with --deep

[licamla]

dev-python/ply-3.11-r200:python2/3.11 cause dev-python/pycparser-2.21 always need rebuild when update with --deep

python3 are now used by default.
Maybe dev-python/ply-3.11-r200:python2/3.11 is not not necessary.

[stefantalpalaru]

I don't think it's something I can fix. dev-python/pycparser-2.21::gentoo is also being emerged unconditionally with every deep update. Could be a Portage bug.

[licamla]

My mistake, I lose the problem package name when post this issue.

I also thought it is a Portage bug at first. But I debug Portage and found that dev-python/pycparser-2.21 mark to rebuild when check dev-python/ply.
so I mask =dev-python/ply-3.11-r200:python2/3.11::stefantalpalaru,and the problem goes away.

[stefantalpalaru]

I looked into it and I can't figure out how to avoid this unconditional rebuild, without giving up any functionality.

[licamla]

I test without dev-python/pycparser-2.20-r200 installed, 3 solutions found:

• A smaller version number than the official one like dev-python/ply-3.11-r0:python2/3.11.(I guess in your environment you still need the next one, this need you to test. because it is effective for those who have not installed dev-python/pycparser-2.20-r200, it is recommended to make this modification)
• Adding dev-python/ply:0 to world also can avoid it in my environment.
• mask =dev-python/ply-3.11-r200:python2/3.11::stefantalpalaru (this shouldn't be what you need, but is best for me now)

[jospezial]

For me it is media-libs/lensfun-0.3.3-r1::stefantalpalaru that causes dev-python/pycparser-2.21-r1::gentoo to rebuild over and over again.

[stefantalpalaru]

media-libs/lensfun-0.3.3-r1::stefantalpalaru that causes dev-python/pycparser-2.21-r1::gentoo to rebuild

How, if there is no dependency between them?

[jospezial]

I was fooled by portage. It is not lensfun.
And I can confirm masking =dev-python/ply-3.11-r200::stefantalpalaru helps even emerge does not want to update to that version because I have only python3_10 and python3_11 allowed.
So as soon I disable the /::stefantalpalaru line in /etc/portage/package.mask/package.mask I am in the pycparser cycle on a world update until I mask =dev-python/ply-3.11-r200::stefantalpalaru.