Create an array of size 20 with random 2-digit values. Replace all numbers divisible by 3 to 'abc'.

Question

Create an array of size 20 with random 2-digit values. Replace all numbers divisible by 3 to 'abc'.
A3 = np.arange(10, 30)
print("\nOne-dimensional array of three digit numbers:")
idx = (A3%3==0)
idx=np.where(idx)
A3[idx]='abc'
print(len(A3))
can you tell how I fix

Answer 1

from random import randrange as rr

l = [int(str(rr(10))+str(rr(10))) for i in range(20)]
l2 = ['abc' if i%3==0 else i for i in l ]