Is there any pythonic way to find average of specific tuple elements in array?

Question

I want to write this code as pythonic. My real array much bigger than this example.

( 5+10+20+3+2 ) / 5

print(np.mean(array,key=lambda x:x[1])

Answer 1

You could use map:

np.mean(list(map(lambda x: x[1], array)))