Find indices of a value in 2d matrix

Question

I have a matrix of the form,

mymatrix=[[1,2,3],[4,5,6],[7,8,9]]

I want to the get the index of, say for example, 9 which is at (2,2).

Answer 1

if you want to find the index of all the occurrence of a val or character in a 2d list, this code may help you and it's readable. Tnq.

for i, e in enumerate(board):
    for j, ee in enumerate(e):
        if 'd' in ee:
            print(i, j)

you can find multiple occurrences too.