Popping a list from a parent class attribute not working as intended

from random import choiceclass PlayingCards:    suits = ['Diamond','Club','Heart','Spade']    numbers = [x for x in range(2,11)] + list('JQKA')    def __init__(self):        self.main_deck = [[number,suit] for number in self.numbers for suit in self.suits]        self.drawed_card = []        self.drawn_cards = []    def hit(self):        if self.main_deck:            self.drawed_card = self.main_deck.pop(choice(range(len(self.main_deck))))            self.drawn_cards.append(self.drawed_card)            return self.drawed_card        else:            return Noneclass PlayerHand(PlayingCards):    def __init__(self):        super().__init__()        self.player_drawn_cards = []    def hit(self):        if self.main_deck:            self.drawed_card = self.main_deck.pop(choice(range(len(self.main_deck))))            self.player_drawn_cards.append(self.drawed_card)            return self.drawed_card        else:            return Nonecards = PlayingCards()player1_cards = PlayerHand()cards.hit()print(len(cards.main_deck))player1_cards.hit()print(len(cards.main_deck))

I'm trying to create a separate list which contains the card drawn by the player himself as well as the dealer which I will be adding further down this small project of mine.

When I ran the code above, the output for both print(len(cards.main_deck)) and print(len(cards.main_deck)) is 51. Shouldn't it be 50 since I called the hit() method twice?