Does H22 change how 456.py works?

Forums Houdini Lounge Does H22 change how 456.py works?

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raincole: Member; 747 posts; Joined: Aug. 2019; Offline

July 25, 2026 7:29 p.m.

I have both 123.py and 456.py under scripts/. In H21 both run, but in H22 only 123.py runs? Is something changed? The doc (https://www.sidefx.com/docs/houdini/hom/locations.html) still says 456.py is a thing.


LeoEvershed: Member; 8 posts; Joined: May 2023; Offline

July 31, 2026 1:39 a.m.

I have had the same issue, did you make a bug report? I'm thinking I'll make one.


akihito20x0: Member; 4 posts; Joined: Dec. 2014; Offline

July 31, 2026 2:03 a.m.

I heard from SideFX Support that this problem was solved in Houdini22.0.386.


cemg: Member; 1 posts; Joined: Aug. 2025; Offline

Aug. 1, 2026 3:57 a.m.

I had the same issue, turned out the 456.py of the Labs was taking over.

Check if there is a file in here (for Windows), if so rename it and maybe copy its contents to your own file:

C:\Program Files\Side Effects Software\sidefx_packages\SideFXLabs22.0\scripts/456.py


jim707jim707jim: Member; 7 posts; Joined: May 2018; Offline

Aug. 8, 2026 5:23 a.m.

akihito20x0
I heard from SideFX Support that this problem was solved in Houdini22.0.386.

No it doesn't


akihito20x0: Member; 4 posts; Joined: Dec. 2014; Offline

Aug. 8, 2026 8:03 a.m.

jim707jim707jim
akihito20x0
I heard from SideFX Support that this problem was solved in Houdini22.0.386.
No it doesn't

Oh. I reported a bug and received so from SideFX Support.
But I haven't tested it yet because I don't use daily builds.

If so, we should report the bug again.


akihito20x0: Member; 4 posts; Joined: Dec. 2014; Offline

Sept. 3, 2026 9:46 a.m.

It also doesn't work with 456.py in Houdini 22.0.429.
So I made a bug report again and it was submitted.

Edited by akihito20x0 - Sept. 3, 2026 13:33:58


akihito20x0: Member; 4 posts; Joined: Dec. 2014; Offline

today 8:57 a.m.

I could figure it out.

If you have a package that has 456.py, your local 456.py is ignored.
And the latest production build of SideFX Labs have 456.py.

If you update it to the latest daily build that don't have 456.py, it works well with your 456.py.

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