list indices must be integers or slices, not tuple

This error occurs when you try to use a tuple as an index for a list. In Python, you can use integers or slices to access specific elements or ranges of elements in a list, but not tuples.

For example, if you have a list called "my_list" and you want to access the third element, you can use the integer index like this:

my_list = [1, 2, 3, 4, 5]
print(my_list[2])

Output:

3

However, if you try to use a tuple as the index, you will get the "list indices must be integers or slices, not tuple" error:

my_tuple = (1, 2)
print(my_list[my_tuple])

Output:

TypeError: list indices must be integers or slices, not tuple

To fix this error, make sure you are using integer or slice indices when accessing elements of a list. If you need to access multiple elements at once, you can use a slice like this:

my_list = [1, 2, 3, 4, 5]
my_slice = slice(1, 4) # get elements 1, 2, 3
print(my_list[my_slice])

Output:

[2, 3, 4]