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Puzzle 1: Explanation

Let’s find out how attribute lookup works in Python.

We'll cover the following...

Let’s try it!

Try executing the code below to verify the results:

Python 3.8
class Player:
    # Number of players in the Game 
    count = 0
    def __init__(self, name): 
        self.name = name
        self.count += 1 
p1 = Player('Parzival')
print(Player.count)

Code explanation

When we write self.count, we’re doing an attribute lookup. The attribute that we’re looking for in this case is count. Getting an attribute in Python is a complex operation. Almost every Python object stores its attributes in a dict called __dict__.

Python will first try to find the attribute in the instance dictionary, then in ...