Chuckk Hubbard wrote:
> I can't think of any reason these lines:
>
> self.regionlist[self.hregion][0] = self.curnum
> self.regionlist[self.hregion][1] = self.curden
> self.regionlist[self.hregion][3] = self.octave11 = self.yadj
>
> should change self.regionlist[0] AND self.regionlist[2] in the same
> call, but they do. Also, if I add more regions in series, they all
> update each other.
The likely explanation is that regionlist[0] and regionlist[2] are actually
the same list. Throw in a
print self.regionlist[0] is self.regionlist[2]
to verify. The two most common reasons for that:
class A:
items = [] # class attribute, shared between all instances
def f(items=[]): # default argument, shared between all calls
# without explicit items argument
return items
Peter
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