PYTHON-2699 Emit PoolReadyEvent before resuming the background thread (#683)
PYTHON-2699 Emit PoolReadyEvent before resuming the background thread (#683)


ShaneHarvey/mongo-python-driver,ShaneHarvey/mongo-python-driver,mongodb/mongo-python-driver,ShaneHarvey/mongo-python-driver,mongodb/mongo-python-driver,mongodb/mongo-python-driver