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

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

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

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])) TypeError: mean() got an unexpected keyword argument 'key'
array = [('a', 5) , ('b', 10), ('c', 20), ('d', 3), ('e', 2)]

sum = 0 for i in range(len(array)): sum = sum + array[i][1]

average = sum / len(array) print(average)

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

How can avoid this? I want to use second example.

python arrays

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