Seems like a tf version error in week 3 assignment. My code: # GRADED FUNCTION: sigmoid def sigmoid(z): """ Computes the sigmoid of z Arguments: z -- input value, scalar or vector Returns: a -- (tf.float32) the sigmoid of z """ # tf.keras.activation…

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

nramon May 31, 2021, 10:00pm 2

The notebooks use TensorFlow 2. You may find this helpful.

Regarding the exercise, take a look at the hint. You only need two lines of code:

z = ...
a = ...

Good luck with the assignment

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