Install blocked by PyYaml dependency broken with new Cython 3

[lpfann]

There was a new release of Cython v3 yesterday, which breaks all versions of PyYaml<6.0.1.
This makes it impossible to install seldon-core currently.
More information here: yaml/pyyaml#724

seldon-core/python/setup.py

Line 43 in ac914f3

"PyYAML >= 5.4, < 5.5",

Is it possible to relax the dependency range to this?

 "PyYAML >= 5.4, <= 6.0.1", 

[dictcp]

upstream decided not to release fix for pyyaml v5.4 (see yaml/pyyaml#726 (comment))
so a pyyaml version pump in seldon is needed as a proper fix.

and it would be great if the fix (if any) can be backport to seldon-core v1.x as well.

---

and as workaround, per yaml/pyyaml#724 (comment)
you consider to install pyyaml via pip install "cython<3.0.0" wheel && pip install pyyaml==5.4.1 --no-build-isolation, before installing your other dependencies

[kellybean-tulcolabs]

and it would be great if the fix (if any) can be backport to seldon-core v1.x as well.

➕ there are innocent models dying out here, we're pretty heavily blocked until this is resolved

and as workaround, per yaml/pyyaml#724 (comment) you consider to install pyyaml via pip install "cython<3.0.0" wheel && pip install pyyaml==5.4.1 --no-build-isolation, before installing your other dependencies

In case you have other dependencies getting in the way, it seems the reverse also works. I'm able to install pyyaml==6.0.1 and pip install --no-build-isolation seldon-core==1.15.0

[kylebluenote]

and it would be great if the fix (if any) can be backport to seldon-core v1.x as well.

➕ there are innocent models dying out here, we're pretty heavily blocked until this is resolved

and as workaround, per yaml/pyyaml#724 (comment) you consider to install pyyaml via pip install "cython<3.0.0" wheel && pip install pyyaml==5.4.1 --no-build-isolation, before installing your other dependencies

In case you have other dependencies getting in the way, it seems the reverse also works. I'm able to install pyyaml==6.0.1 and pip install --no-build-isolation seldon-core==1.15.0

Jumping in on this train here, we're blocked on this as well and upgrading doesn't look like it's going to fix things for us