[Tutor] Help with excetion handing and making my code more efficient needed please

[Matt Smith]

> > Is there a better way of doing this?
> 
> Perhaps something like this:
> 
> for n in (x, x+1, x-1):
>   for m in (y, y+1, y-1):
>     if matrix[n, m]:
>       neighbour_count = neighbour_count + 1
> 

I need to not text matrix[x][y] is there a simple way to exclude this from the possible combinations of values from the two tuples?