tf.contrib.training.wait_for_new_checkpoint

Waits until a new checkpoint file is found.

tf.contrib.training.wait_for_new_checkpoint(
    checkpoint_dir, last_checkpoint=None, seconds_to_sleep=1, timeout=None
)

Args
checkpoint_dir	The directory in which checkpoints are saved.
last_checkpoint	The last checkpoint path used or None if we're expecting a checkpoint for the first time.
seconds_to_sleep	The number of seconds to sleep for before looking for a new checkpoint.
timeout	The maximum number of seconds to wait. If left as None, then the process will wait indefinitely.

Returns
a new checkpoint path, or None if the timeout was reached.