pinkisntwell wrote:
class Vertex(tuple):
pass
class Positioned_Vertex(Vertex):
def __init__(self, a, b):
def __init__(self, a): # just take out b
Vertex.__init__(a)
a=Positioned_Vertex((0,0,0), 1)
a=Positioned_Vertex( ( (0,0,0), 1) ) # and add a pair of brackets
print a
This gives:
TypeError: tuple() takes at most 1 argument (2 given)
It looks like the explicit call to Vertex.__init__ is never made and
Vertex.__init__ is implicitly called when a Positioned_Vertex is
created. Is there a way to work around this and call the constructor
with the intended argument list?
Simplest way to get it to work is above using Python 2.6.2 on Windows.
I'm sure there are variations depending on your use case, but I'll leave
that to the experts.
--
Kindest regards.
Mark Lawrence.
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