Re: [Qemu-devel] [PATCH] Deprecate Python 2 support

[Kevin Wolf]

Am 03.05.2019 um 21:37 hat Eduardo Habkost geschrieben:
> Python 2 will reach end of life in January 1 2020.  Declare it as
> deprecated.
> 
> Signed-off-by: Eduardo Habkost <address@hidden>
> ---
>  configure            | 8 ++++++++
>  qemu-deprecated.texi | 8 ++++++++
>  2 files changed, 16 insertions(+)
> 
> diff --git a/configure b/configure
> index 5b183c2e39..50385061ed 100755
> --- a/configure
> +++ b/configure
> @@ -6461,6 +6461,14 @@ if test "$supported_os" = "no"; then
>      echo "us upstream at address@hidden"
>  fi
>  
> +# Note that if the Python conditional here evaluates True we will exit
> +# with status 1 which is a shell 'false' value.
> +if ! $python -c 'import sys; sys.exit(sys.version_info < (3,0))'; then
> +  echo
> +  echo "WARNING: Python 2 support is deprecated" >&2
> +  echo "WARNING: Python 3 will be required for building future versions of 
> QEMU" >&2
> +fi

While it's clear that we want to get rid of Python 2, did we actually
discuss how to decide what the new minimum Python version is? I don't
think any major distribution uses 3.0, which was released in 2008, so
this doesn't seem to make a lot of sense to me as the new minimum.

Currently, 3.6 seems to be a commonly available version. It looks like
Debian stable is at 3.5 still, though it might become oldstable before
the next QEMU release. Do we need to support anything older than that?

Kevin