import tensorflow as tf

# Simple hello world using TensorFlow

# Create a Constant op
# The op is added as a node to the default graph.
#
# The value returned by the constructor represents the output
# of the Constant op.

hello = tf.constant('Hello, TensorFlow!')

# Start tf session
sess = tf.Session()

# Run graph
print sess.run(hello)

Hello, TensorFlow!