human
I am working on the file "Python/Chapter-09/Heap-Array.ipynb".
The first task is:
Testing
Can you write Python program for it?

=====
Can you provide a the Python program you requested?
assistant
#Here is the Python program you requested.

class Node:
    def __init__(self, value):
        self.mValue = value
        
    def __hash__(self):
        return hash(self.mValue)
    
    def __repr__(self):
        try:
            return 'Node(' + str(self.mValue) + ':' + str(self.mIndex) + ')'
        except AttributeError:
            return 'Node(' + str(self.mValue) + ')'
        
    def __str__(self):
        return str(self.mValue)
    
    def __eq__(self, other):
        if other == None:
            return False
        return self.mValue == other.mValue
    
    def __lt__(self, other):
        return self.mValue < other.mValue

import string

def demo1():
    L = [ (i, Node(c)) for i, c in enumerate(string.ascii_lowercase) ]
    _, w = L[22] 
    H = []
    for i, x in enumerate(L):
        insert(H, x)
    display(heapToDot(H))
    print('Elevating "w" to priority 2:')
    elevate(H, w, 2)
    display(heapToDot(H))

demo1()

import random as rnd

def heap_sort(L):
    H = []
    for x in L:
        insert(H, x)
    display(heapToDot(H))
    S = []
    while H != []:
        p, _ = remove(H)
        display(heapToDot(H))
        S.append(p)
    return S

def demo2():
    L = [ rnd.randrange(1, 200) for n in range(12) ]
    L = [ (n, Node(n)) for n in L ]
    print("L = ", L)
    S = heap_sort(L)
    print("S = ", S)

demo2()