What does that code snippet signify “tf.logging.set_verbosity(tf.logging.INFO)” in tensorflow code?

Question

I have seen many usage of that line of code in many tensorflow projects. What does the line do in tensorflow?

Answer 1

It is easier to try this yourself. I use Pycharm IDE and it captures the output.

import tensorflow as tf

tf.logging.set_verbosity(tf.logging.DEBUG)
#tf.logging.set_verbosity(tf.logging.INFO) 
# Other settings

tf.logging.debug('Debug')
tf.logging.info('info')
tf.logging.warn('warn')
tf.logging.error('error')
tf.logging.fatal('fatal')

Answer 2

The logging level documentation page basically tells you: If you set it to the level as displayed ( INFO ), then TensorFlow will tell you all messages that have the label INFO (or more critical).

Say you would only be interested in WARN or ERROR , then you could similarly set tf.logging.set_verbosity(tf.logging.WARN)