Hey I have a question! I'm new here, so please let me know if this message does not belong here: My current python projects are using

python = "3.9.*"

. When I try to upgrade kedro-viz to 8.0.1, I get the following error: The current project's Python requirement (==3.9.*) is not compatible with some of the required packages Python requirement: - kedro-viz requires Python >=3.9, so it will not be satisfied for Python >=3.9.dev0 But shouldn't it be satisfied? (I know that if I change the python version to

"^3.9"

it works, but ideally I'd like to prevent that)

(I know that if I change the python version to

"^3.9"

it works, but ideally I'd like to prevent that)

Why do you want to avoid that? This seems like a pretty pedantic thing, where your version specifier for Python is including pre-release Python 3.9 versions. Are you perhaps OK with

"~3.9"

, if you want to avoid 3.10+?

Thanks for your quick reply! I'm indeed using Poetry. I want to avoid 3.10 but also preferred it for consistency (all our projects are using =3.9.*).

~3.9

should work to avoid 3.10 indeed, so I might just do that. But it still makes me wonder why

=3.9.*

does not work.

Because

3.9.*

technically matches

3.9.dev0

, which is not matched by

>=3.9

Oh I see, I didn't know that. Thanks 🙂

This is an edge case you probably don't care about, since you don't have users using pre-release versions of 3.9. Kedro-Viz probably doesn't want to enable pre-release 3.9 versions in it's support matrix, either.