I need help understanding a program structure using classes

[BashBedlam]

# 1 Yes you can have a global variable by the same name but I don't recommend it.
# 2 Yes because number is an argument and self.number is a variable that is set to that value.
# 3 chips will work correctly inside of "__init__" but nowhere else.
# 4 I recommend a setter method inside of your class that contains something like "self.hand.append (argument)".
# 5 Correct.
# 6 Will work but would be better if "picacard" was a method inside of your Player class and called like this "self.picacard (deck).
# 7 Will not work. In order to modify a global variable you would have to declare it as global inside of your class

hand = 3 #(1)<---------------I can have a global variable with the same name has an instance variable
deck = [['1','H'], ['2','H'], ['3','H'], ['4','H'], ['5','H']]
 
def pickacard(deck):
    card = deck[0]
    deck.remove(deck[0])
    return card
 
class Player:
    flop = []
    turn = []
    river = ['This is Player.river']
       
    def __init__(self, number, chips):
        self.number = number #(2)<---------Since it's number I need to pass an argument when I create an object of that class
        chips = 4#(3)<----------------Since there's no self. before this doesn't work
        self.hand = []#(4)<------------Since i declare it has an empty list, I don't need to give an argument when i create an object, but how do append something do this list?
        self.show_how_to_use_class_and_local_variables ()
  
    def show_how_to_use_class_and_local_variables (self) :
        print ('\n')
        print (self.hand)
        print (Player.river)
        print ('Next is the error because "hand" is undefined.\n\n')
        print (hand)#<----------------This calls the global variable, not the instance variable
        #print(self.chips)#(5)Doesn't work because you can't declare a instance variable like this
 
    def pickplayershand(self, deck, pickacard):  #<--------- Here (6)
        card = pickacard(deck)
        deck.remove(deck[0])
        hand.append(card)#<--------------------And here(7)
        card = pickacard(deck)
        deck.remove(deck[0])
        hand.append(card)
        return
 
player1 = Player (7, 11)
print(player1.hand)