remove six dependency

[a-detiste]

No description provided.

[martindurant]

You would be welcome to update the CI environments from py38,39,310 to 39,310,311,312 . We can probably make the minimum python version 3.9 , as 3.8 is approaching end of life.

[martindurant]

You will need to make the 311, 312 env files, sorry. Yes, of course this should be templated :|

[a-detiste]

Hi, I don't mind, it's fun learning new things

[a-detiste]

It's getting interresting

[martindurant]

Entrypoints changed its API at some point. The section of code dealing with that will need a version check.

Intake has:

from importlib.metadata import entry_points

...
    eps = entry_points()
    if hasattr(eps, "select"):  # Python 3.10+ / importlib_metadata >= 3.9.0
        specs = eps.select(group="intake.imports")
    else:
        specs = eps.get("intake.imports", [])