The xml.etree.cElementTree module will be removed in Python 3.9. Since Python 3.3 the xml.etree.cElementTree module has been deprecated, the xml.etree.ElementTree module uses a fast implementation whenever available. Builds using Python 2.7 can still work but with the slower implementation. Signed-off-by: Vinson Lee <vlee@freedesktop.org> Acked-by: Eric Engestrom <eric@engestrom.ch> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5349>