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108 lines
2.4 KiB
Python
108 lines
2.4 KiB
Python
class Point(object):
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def __init__(self, x, y):
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self._x = x
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self._y = y
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def __repr__(self):
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return 'Point(%r, %r)' % (self._x, self._y)
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def __eq__(self, other):
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if not isinstance(other, Point):
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return False
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return self._x == other._x and self._y == other._y
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def __ne__(self, other):
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return not self.__eq__(other)
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def __hash__(self):
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return hash((self._x, self._y))
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class BadColorPoint(Point):
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def __init__(self, x, y, color):
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Point.__init__(self, x, y)
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self._color = color
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def __repr__(self):
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return 'ColorPoint(%r, %r)' % (self._x, self._y, self._color)
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class GoodColorPoint(Point):
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def __init__(self, x, y, color):
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Point.__init__(self, x, y)
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self._color = color
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def __repr__(self):
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return 'ColorPoint(%r, %r)' % (self._x, self._y, self._color)
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def __eq__(self, other):
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if not isinstance(other, GoodColorPoint):
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return False
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return Point.__eq__(self, other) and self._color == other._color
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def __ne__(self, other):
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return not self.__eq__(other)
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def __hash__(self):
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return hash((self._x, self._y, self._color))
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class GenericPoint(object):
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def __init__(self, x, y):
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self._x = x
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self._y = y
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def __repr__(self):
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return 'Point(%r, %r)' % (self._x, self._y)
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def __eq__(self, other):
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return self.__class__ == other.__class__ and self.__dict__ == other.__dict__
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def __ne__(self, other):
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return not self.__eq__(other)
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def __hash__(self):
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return hash((self._x, self._y))
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class GoodGenericColorPoint(GenericPoint):
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def __init__(self, x, y, color):
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GenericPoint.__init__(self, x, y)
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self._color = color
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class RedefineEq(object):
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def __init__(self, x, y):
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self._x = x
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self._y = y
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def __eq__(self, other):
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return self is other
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class OK1(RedefineEq):
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def __init__(self, x, y, z):
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RedefineEq.__init__(self, x, y)
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self.z = z
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class OK2(GenericPoint):
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def __init__(self, x, y, color):
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GenericPoint.__init__(self, x, y)
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self._color = color
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def __eq__(self, other):
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return self is other
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class ExpectingAttribute(object):
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def __eq__(self, other):
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return self.x == other.x
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class OK3(ExpectingAttribute):
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def __init__(self):
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self.x = 4
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