simple_tensorboard_test.py

import os
import shutil
from os.path import expanduser

import tensorflow as tf

summ = tf.summary.scalar('rand', tf.random_uniform(()))
summary_path = expanduser('~/tf_summaries')
if os.path.exists(summary_path):
    shutil.rmtree(summary_path)
writer = tf.summary.FileWriter(summary_path)
sess = tf.Session()

for i in range(20):
    summ_result = sess.run(summ)
    writer.add_summary(summ_result, global_step=i)