Moon <[EMAIL PROTECTED]> writes:
> class Vec(list):
> def __init__(self):
> list.__init__(self, [0.0, 0.0])
>
> def __iadd__(self, other):
> assert isinstance(other, Vec)
> self[0] += other[0]
> self[1] += other[1]
> print "right now, v is: ", self, " as you'd expect"
return self
>
>
> v = Vec()
> w = Vec()
> w[0] = 1.0
> w[1] = 2.0
> print "v starts:", v
>
> print "(w is:", w, " which is fine)"
>
> v += w
>
> print "(w still is:", w
>
print "after iadd, v: ", v
>
> # - running it:
v starts: [0.0, 0.0]
(w is: [1.0, 2.0] which is fine)
right now, v is: [1.0, 2.0] as you'd expect
(w still is: [1.0, 2.0]
after iadd, v: [1.0, 2.0]
-Marshall
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