[patch] cygport : update to python 3.9

[Jon Turney]

On 31/12/2021 10:00, Marco Atzeri wrote:
> Attached patch moves "default" from 3.6 to 3.9
> 
> Additional changes:
>   Remove 3.5 from all
>   Change future to 3.10
> 

Thanks.

> 
> Other point:
> 
> As 3.5 was never really deployed, I think we can remove it from the 
> distribution.
> 
> As we have a lot of python3-* is obsoleted py python36-*
> what is the best way to updated to python39-* when available ?

Good question.  Note the comment before this hunk:

> @@ -128,7 +128,7 @@
>                 # and MUST NOT be updated when defaults change
>                 case ${ver} in
>                 2.7)    declare -g python27_${PYTHON_WHEEL_NAME//[-\.]/_}_OBSOLETES="python-${PYTHON_WHEEL_NAME} python2-${PYTHON_WHEEL_NAME}" ;;
> -               3.6)    declare -g python36_${PYTHON_WHEEL_NAME//[-\.]/_}_OBSOLETES="python3-${PYTHON_WHEEL_NAME}" ;;
> +               3.9)    declare -g python39_${PYTHON_WHEEL_NAME//[-\.]/_}_OBSOLETES="python3-${PYTHON_WHEEL_NAME}" ;;
>                 esac
>                 declare -g python${ver/.}_${PYTHON_WHEEL_NAME//[-\.]/_}_CONTENTS="usr/lib/python${ver}/site-packages/ usr/share/doc/python${ver/.}-${PYTHON_WHEEL_NAME}"
>         done

which in full reads:

"
		# these were 2&3 at the time of the XY-version split,
		# and MUST NOT be updated when defaults change
"

So it seems to me that either that hunk is wrong, or that comment needs 
updating.

I'm not sure what the intent is here.