what does 'a=b=c=[]' do
- From: Eric <einazaki668@xxxxxxxxx>
- Date: Wed, 21 Dec 2011 14:25:17 -0800 (PST)
Is it true that if I want to create an array or arbitrary size such
as:
for a in range(n):
x.append(<some function...>)
I must do this instead?
x=[]
for a in range(n):
x.append(<some function...>)
Now to my actual question. I need to do the above for multiple arrays
(all the same, arbitrary size). So I do this:
x=y=z=[]
for a in range(n):
x.append(<some function...>)
y.append(<some other function...>)
z.append(<yet another function...>)
Except it seems that I didn't create three different arrays, I created
one array that goes by three different names (i.e. x[], y[] and z[]
all reference the same pile of numbers, no idea which pile).
This surprises me, can someone tell me why it shouldn't? I figure if
I want to create and initialize three scalars the just do "a=b=c=7",
for example, so why not extend it to arrays. Also, is there a more
pythonic way to do "x=[], y=[], z=[]"?
It's a slick language but I still have trouble wrapping my brain
around some of the concepts.
TIA,
eric
.
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