ItemsModifier.py

# -*- coding: utf-8 -*-
"""
Created on Tue Apr 19 21:32:12 2022

@author: Md Jobayer
"""

List1 = [1, 2, 5, 7, 8, 13, 16, 17, 20, 21]

def second_min(list):
    m1, m2 = min(list), None
    for x in list:
       if(x > m1):
           if(m2 is None):
               m2 = x
           elif (x < m2):
               m2 = x
    return m2

def replace_with_second_min(list):
    m1, m2 = min(list), second_min(list)
    for i, x in enumerate(list):
        if(x == m1):
            list[i] = m2
    return list

def all_are_equal(list):
    equal = True
    first_item = list[0]
    for x in list:
        if(x != first_item):
            equal = False
    return equal

def processed_list(list):
    equal = all_are_equal(list)
    new_list = replace_with_second_min(list)
    return equal, new_list

def do_stuff(list):
    while True:
        equal, new_list = processed_list(list)
        if not equal:
            print('############################')
            print(f'New list = {new_list}')
            print(f'First min = {min(list)}')
            print(f'Second min = {second_min(list)}')
            print('############################\n\n')
            list = new_list
        else:
            break

print('############################')
print(f'For list = {List1}')
print(f'First min = {min(List1)}')
print(f'Second min = {second_min(List1)}')
print('############################\n\n')

do_stuff(List1)