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On Saturday, April 27, 2013, Greg Ewing wrote:

This whole business can be avoided by doing things differently

in the first place. Instead of initialising the enum items by

calling the class, just assign a tuple of args to the name

and have the metaclass make the constructor call.



� class Planet(Enum):

� � MERCURY = (3.303e+23, 2.4397e6)

� � VENUS � = (4.869e+24, 6.0518e6)

� � EARTH � = (5.976e+24, 6.37814e6)

� � MARS � �= (6.421e+23, 3.3972e6)

� � JUPITER = (1.9e+27, � 7.1492e7)

� � SATURN �= (5.688e+26, 6.0268e7)

� � URANUS �= (8.686e+25, 2.5559e7)

� � NEPTUNE = (1.024e+26, 2.4746e7)



� � def __init__(self, mass, radius):

� � � self.mass = mass

� � � self.radius = radius



I think that's better anyway, since it avoids aggravated

violation of DRY by repeating the class name umpteen times.