import dowel
from dowel import logger, tabular

logger.add_output(dowel.StdOutput())
logger.add_output(dowel.TensorBoardOutput('tensorboard_logdir'))

logger.log('Starting up...')
for i in range(1000):
    logger.push_prefix('itr {}'.format(i))
    logger.log('Running training step')

    tabular.record('itr', i)
    tabular.record('loss', 100.0 / (2   i))
    logger.log(tabular)

    logger.pop_prefix()
    logger.dump_all()

logger.remove_all()