def export_date_time(format):

  def export_date_time_lambda(value):
    if not value:
      return ''
    return datetime.datetime.strftime(value, format)

  return export_date_time_lambda
Leave the barrier, blocks until all nodes have left
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/ext/bulkload/transform.py/export_date_time--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/kazoo-2.0/kazoo/recipe/barrier.py/DoubleBarrier.leave