Typeerror: 'tuple' Object Does Not Support Item Assignment When Swapping Values

I am writing a simple sort program in python and encounter this error. I want to swap list elements but it returns an error. I am attaching the error and program in question below.

Solution 1:

Evaluating "1,2,3" results in (1, 2, 3), a tuple. As you've discovered, tuples are immutable. Convert to a list before processing.

Solution 2:

or simply assign the whole tuple itself, instead of changing elements inside tuple.

example: want to add 'count' to 1st element of the 'i-th' tuple :

tup[i] = (tup[i][0] + count, tup[i][1])

Solution 3:

To anyone googling this error: check for unwanted commas in your code. For example,

arr = np.zeros(n),
arr[i] = something

will throw this error.