jwaixs wrote:
> Thank you for all your reply and support. Neil's fits the most to me. I
> shrinked it to this function:
>
> def flatten(x):
> for i in range(len(x)):
> if isinstance(x[i], list):
> x[i:i+1] = x[i]
>
> Thank you all again. If someone could find even a cuter way, I'd like
> to see that way.
>
> Noud Aldenhoven
That version's broken, but this version works (but only with lists, of
course):
def flatten(x):
i, length = 0, len(x)
while i < length:
n = x[i]
if isinstance(n, list):
x[i:i+1] = n
length += len(n) - 1
else:
i += 1
x = [1, [2, 3, [[]], 4], [[5, 6, 7], [], 8, [9]], 10, [11]]
flatten(x)
print x
Prints:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
You can't increment the index until you're sure you're x[i] isn't a
list, and you have to keep track of the length of x as you go (that's
why your for loop is broken.)
Peace,
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