Treverse list of tuples to compare and report min, max

My previous question was not understood, so I rephrase and post this one.
I have a list of tuple for (class, n_class_examples) like this:

my_list = (0, 126), (1, 192), (2, 330), (3, 952) ]

So I am interested in generating a function, that takes in such a list, compare each tuple against all others, and in each case reports which class has smaller number of samples (min_class), and which has the larger number of samples (max_class).

def get_min_max_class(current_list):
    for tn, tn+1: # tn -> 1-tuple, tn+1 any other tuple not tn
        if tn[1] < tn+1[1]
            smaller_class = tn[0]
            larger_class = tn+1[0]
        smaller_class = tn+1[0]
        larger_class = tn[0]
    return # smaller, larger of the 2 compared in each case

So that:

get_min_max_class(my_list)
# would perform the comparison like so:
(0, 126) v (1, 192) -> min_class = 0, max_class = 1 # in this case
(0, 126) v (2, 330) -> min_class = 0, max_class = 2 # and in this case
(0, 126) v (3, 952) -> min_class = 0, max_class = 3 # and here ..
(1, 192) v (2, 330) -> min_class = 1, max_class = 2 # ...
(1, 192) v (3, 952) -> min_class = 1, max_class = 3
(2, 330) v (3, 952) -> min_class = 2, max_class = 3

Forgive my definition of function, but I want the function to iteratively compare those items, each time, report which is larger and which is smaller.

>Solution :

Iterate over the list of pairs generated by itertools.combintions, the process each pair individually using min and max.

from itertools import combinations
from operator import itemgetter

first = itemgetter(0)
second = itemgetter(1)

def get_min_max_class(current_list):
    for pair in combinations(current_list, 2):
        p0, p1 = pair
        min_class = first(min(pair, key=second))
        max_class = first(max(pair, key=second))
        print(f'{p0} v {p1} -> min_class = {min_class}, max_class = {max_class}')

get_min_max_class(my_list)

If you want to return a list of results, rather than simply printing a report, you’ll have to define what exactly you want to return.