Hilton Chain via Guix-patches via <guix-patches@gnu.org> writes:

> * gnu/packages/python-xyz.scm (shrinkwrap): New variable.
> ---
>  gnu/packages/python-xyz.scm | 48 +++++++++++++++++++++++++++++++++++++
>  1 file changed, 48 insertions(+)

Thanks! I've pushed this and the previous patch to master as
2edd7cd00c8f7abd073acbe241a6583d4e3a3df9.

Chris