Chris Rebert a écrit :
(snip)
Here is how I would rewrite your example:
class Shape(object):
def __init__(self, x=0, y=0):
self.x = x
self.y = y
@property
def location(self):
return (self.x, self.y)
@location.setter
def location(self, val):
self.x, self.y = val
Not necessary but helps documenting the expected interface:
def draw(self):
raise NotImplementedError("Abstract method")
class Square(Shape):
def __init__(self,size):
super(Square, self).__init__()
self.size = size
Why can't I specify a Square location ??? This looks rather inconsistant
and inconveniant to me...
def __init__(self, x=0, y=0, size=0):
super(Square, self).__init__(x, y)
self.size = size
def draw(self):
x, y = self.location
# code to draw shape from location[0],location[1] at size size
# etc...
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