extracting data from tuples

I have a tuple that prints from a program somewhat like this:
tuple1(0, [ [1, 2, 3, 4,] ])
when i do a len(tuple1) command it says the length of the tuple is 2 which i guess it is looking at it because its treating the 1 2 3 4 as one entry.

however i am trying to extract the 1 2 3 and 4 from it. i have tried various combinations of multidimension array commands mainly things like print tuple1[1][0] etc.. but cant for the life of me extract the 1 2 3 and 4 individually.

Can someone help me with this? it looks like it would be simple to do but i have googled it and cant find a solution.

Thanks