[yocto] Add cmd.py library for python-core package

[Alexander Kanavin]

On Wed, 20 Feb 2019 at 12:25, Piotr Piwko <piotr.piwko at gmail.com> wrote:
> I would like to add cmd.py library to my final image. In order to do
> so I modified python2-manifest.json file from poky delivery.
>
> This solution works fine. However, is there any possibility to do not
> change the global poky/python2-manifest,json file and get the same
> result? I would like to provide this library only for particular image
> not for all my supported ones. I tried to put new manifest file in
> upper layers of my meta, but it seems to not be taken into
> consideration by python recipe.

I'm not sure why you had to modify the manifest, as cmd.py is provided
by python-shell package according to the manifest. If you show your
changes, it may be easier to understand the issue.

Alex