Re: iotests and python dependencies

["Daniel P. Berrangé" <berrange@redhat.com>]

On Wed, May 04, 2022 at 03:38:45PM -0400, John Snow wrote:
> Howdy!
> 
> So, I want to finally delete python/qemu/qmp from qemu.git, and this
> creates a small problem -- namely, iotests needs access to it in order
> to run the python-based tests.
> 
> What I think needs to happen is that we create a virtual environment
> that installs python/qemu/. The reason this cannot be done with
> PYTHONPATH alone anymore is because the qmp package itself won't be
> there anymore, we need an installer like `pip` to actually fetch it
> for us and put it somewhere. (i.e., we need to process the
> dependencies of python/qemu now and can't treat it as a pre-installed
> location.)

Having pip fetch it on the fly creates a problem for RPM builds,
because the koji build env has no network access. We will, however,
have an RPM of python-qemu-qmp installed on the host system though.
IOW we need to be able to run iotests using system python and its
installed libs, not a virtual env.  So if we do anything with a
virtual env, it will need to be optional I believe.


With regards,
Daniel
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