venv/lib/python3.10/site-packages/pyarrow/tests/arrow_16597.py

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# This file is called from a test in test_flight.py.
import time

import pyarrow as pa
import pyarrow.flight as flight


class Server(flight.FlightServerBase):
    def do_put(self, context, descriptor, reader, writer):
        time.sleep(1)
        raise flight.FlightCancelledError("")


if __name__ == "__main__":
    server = Server("grpc://localhost:0")
    client = flight.connect(f"grpc://localhost:{server.port}")
    schema = pa.schema([])
    writer, reader = client.do_put(
        flight.FlightDescriptor.for_command(b""), schema)
    writer.done_writing()