Computing's master/slave metaphor is unpleasantly reminiscent of real slavery and not technically precise anyway. wmfdata-python uses "master" in a couple places:
as the primary Git branch. We should change this to main as long as it won't cause significant backwards-compatibility issues.- in the spark module, following Spark's use of the term for the coordinator process. Spark has a general plan to replace the term, but until they actually do, we should probably wait to avoid confusion from introducing a non-standard term.