string indices must be integers,not tuple

This error occurs when you try to use a tuple as an index for a string instead of an integer. In Python, string indices must be integers, and you cannot use tuples or other non-integer types as indices.

For example, consider the following code:

my_string = "Hello, World!"
index = (0, 1)
print(my_string[index])

This will result in the following error:

TypeError: string indices must be integers, not tuple

To fix this error, you need to use an integer instead of a tuple as the index for the string. For example:

my_string = "Hello, World!"
index = 0
print(my_string[index])

This will output the first character of the string, "H".