Back
Close

Computing with Data

elgeish
33.2K views

Classes

As in Java and C++, Python classes contain fields (variables) and methods (functions) and allow inheritance:

# Example: a point in a two-dimensional coordinate space
class Point:
def __init__(self, x, y):
self.x = x
self.y = y
def __del__(self):
print ("destructing a Point object")
p1 = Point(3, 4)
p2 = Point(1, 2)
print("p1.x = {0.x}, p1.y = {0.y}".format(p1))
print("p2.x = {0.x}, p2.y = {0.y}".format(p2))
# Example: a class field (num_points) and instance fields (x and y)
class Point:
'''Represents a point in a two-dimensional coordinate space.'''
num_points = 0
def __init__(self, x, y):
Point.num_points += 1
self.x = x
self.y = y
def __del__(self):
Point.num_points -= 1
print("destructing a Point object")
print("{} Point objects left".format(Point.num_points))
print(Point.__doc__)
p1 = Point(3, 4)
p2 = Point(1, 2)
print("p1.x = {0.x}, p1.y = {0.y}".format(p1))
print("p2.x = {0.x}, p2.y = {0.y}".format(p2))
print("number of objects:", Point.num_points)
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Create your playground on Tech.io
This playground was created on Tech.io, our hands-on, knowledge-sharing platform for developers.
Go to tech.io
codingame x discord
Join the CodinGame community on Discord to chat about puzzle contributions, challenges, streams, blog articles - all that good stuff!
JOIN US ON DISCORD
Online Participants