tf.train.latest_checkpoint( checkpoint_dir, latest_filename=None )
See the guide: Variables > Saving and Restoring Variables
Finds the filename of latest saved checkpoint file.
checkpoint_dir: Directory where the variables were saved.
latest_filename: Optional name for the protocol buffer file that contains the list of most recent checkpoint filenames. See the corresponding argument to
The full path to the latest checkpoint or
None if no checkpoint was found.