Puzzle 1 Ready Player One

Python Brain Teasers — by Miki Tebeka (10 / 40)

👈 Part 1 Python Brain Teasers | TOC | A Slice of π 👉

player.py

​ ​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)

Guess the Output

IMPORTANT

Try to guess what the output is before moving to the next page.

This code will print: 0

When you write self.count, you’re doing an attribute lookup. The attribute you’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 the instance’s class (__class__) dictionary, and then up the inheritance hierarchy (__mro__). Finally, if the attribute you’re looking for is not found, Python will raise an AttributeError.