{{ message }}

Instantly share code, notes, and snippets.

axilleas/coordinate.py

Created Mar 30, 2013
Edx - 6.00x Lecture 10 Problem 7
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters
 class Coordinate(object): def __init__(self,x,y): self.x = x self.y = y def getX(self): # Getter method for a Coordinate object's x coordinate. # Getter methods are better practice than just accessing an attribute directly return self.x def getY(self): # Getter method for a Coordinate object's y coordinate return self.y def __str__(self): return '<' + str(self.getX()) + ',' + str(self.getY()) + '>' def __eq__(self, other): # First make sure `other` is of the same type assert type(other) == type(self) # Since `other` is the same type, test if coordinates are equal return self.getX() == other.getX() and self.getY() == other.getY() def __repr__(self): return 'Coordinate(' + str(self.getX()) + ',' + str(self.getY()) + ')' a = Coordinate(2,3) # Create new object 'a' b = Coordinate(4,5) # Create new object 'b' print a.getX() # Print the x value of object 'a' print a.getY() # Print the y value of object 'a' print b == a # Compare b with 'a' print a == b # Compare a with 'b' # Notice how 'self' and 'other' are swapped during comparison, # the left object gets assigned to self print a # How object 'a' is printed by __str__ print repr(a) # How object 'a' is printed by __repr__ # Notice that the way it is printed, looks the same # as object 'a' itself 'Coordinate(2,3)'. # Using eval (python's built-in function), we # can evaluate the value of repr(a), hence the # example eval(repr(a)) == a

slibbyprdxn commented Apr 12, 2013

Nice looking code. Would you mind giving me feedback on my L12 P7 here? http://bit.ly/10VqLmt