AttributeError: module 'tensorflow' has no attribute 'placeholder'

Описание

AttributeError Traceback (most recent call last)
ipython-input-5-157d9cac347c in module()
19 # damping -- wave damping
20
--- 21 eps = tf.placeholder(tf.float32, shape = ())
22 damping = tf.placeholder(tf.float32, shape = ())
23

AttributeError: module 'tensorflow' has no attribute 'placeholder'