The premise behind the original behavior is that it would save people
from downloading Avocado (and other dependencies) if already installed
on the system. To be honest, I think it's extremely rare that the
same versions described as dependencies will be available on most
systems. But, the biggest motivations here are that:
1) Hacking on QEMU in the same system used to develop Avocado leads
to confusion with regards to the exact bits that are being used;
2) Not reusing Python packages from system wide installations gives
extra assurance that the same behavior will be seen from tests run
on different machines;
With regards to downloads, pip already caches the downloaded wheels
and tarballs under ~/.cache/pip, so there should not be more than
one download even if the venv is destroyed and recreated.
Signed-off-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20210415215141.1865467-3-crosa@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
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