The PYTHONPATH assumptions made by scripts in "tools/build" are not necessarily always valid, notably in Kitchen execution circumstances. The solution (ATM) is to run each such script through "runit.py" so it picks up the local PYTHONPATH.
Update all script invocation sites in "tools/build" to do this so their assumptions hold for all execution environments.
Comment 1 by d...@chromium.org
, May 17 2017