def remove_label(self, label):
        try:
            self._labels.remove(label)
        except ValueError:
            pass
Mark the future as running or process any cancel notifications.
dataset/ETHPy150Open babble/babble/include/jython/Lib/mailbox.py/BabylMessage.remove_label--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/concurrent/concurrent/futures/_base.py/Future.set_running_or_notify_cancel