NameError: name 'sess' is not defined

Question

I am running python program under tensorflow. When I input sess.run(),the command line prompt me that NameError: name 'sess' is not defined

print(sess.run(W_conv1))
Traceback (most recent call last):

  File "<ipython-input-17-cf7d3892efbb>", line 1, in <module>
    print(sess.run(W_conv1))

NameError: name 'sess' is not defined

Answer 1

You have to define sess. Put this line before accessing it.

sess = tf.Session()

or even you could use a with statement:

with tf.Session() as sess:

    #Do something with sess
    print(sess.run(W_conv1))