Glad you fixed, it @mikepang98.
I think it’s not the first time I’ve seen this problem. In case others encounter it, the function header for one_hot_matrix read:
def one_hot_matrix(labels, depth):
Instead of:
def one_hot_matrix(label, depth=6):
So when it gets called by map with a single argument, it raises the error:
TypeError: tf__one_hot_matrix() missing 1 required positional argument: ‘depth’
Enjoy the rest of the course 