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  1. Apache Arrow
  2. ARROW-14255

[Python] FlightClient.do_action is a generator instead of returning one.

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      According to the documentation ( https://arrow.apache.org/docs/python/generated/pyarrow.flight.FlightClient.html#pyarrow.flight.FlightClient.do_action ) I would expect to be able to invoke client.do_action and get back an iterator. While it seems that the function is in fact a generator itself.

      This makes a big difference because if it returns an iterator I expect to be able to do client.do_action(...) and just ignore the result if I don't care. But if it's a generator ignoring the results makes so that it actually doesn't get invoked at all and thus that the server won't do anything.

      It would make sense to make do_action return a generator instead of being a generator itself, that would keep backward compatibility and would avoid puzzled users that don't see their code being invoked when they do client.do_action(...)

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              amol- Alessandro Molina
              amol- Alessandro Molina
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