class Stack:

  def __init__(self):

    self.stack = []

​

  def push(self, element):

    self.stack.append(element)

​

  def pop(self):

    if self.isEmpty():

      return "Stack is empty"

    return self.stack.pop()

​

  def peek(self):

    if self.isEmpty():

      return "Stack is empty"

    return self.stack[-1]

​

  def isEmpty(self):

    return len(self.stack) == 0

​

  def size(self):

    return len(self.stack)

​

# Create a stack

myStack = Stack()

​

myStack.push('A')

myStack.push('B')

myStack.push('C')

​

print("Stack: ", myStack.stack)

print("Pop: ", myStack.pop())

print("Stack after Pop: ", myStack.stack)

print("Peek: ", myStack.peek())

print("isEmpty: ", myStack.isEmpty())

print("Size: ", myStack.size())

​