mrk...@gmail.com wrote:
Hello everybody,
Any better solution than this?
def flatten(x):
res = []
for el in x:
if isinstance(el,list):
res.extend(flatten(el))
else:
res.append(el)
return res
a = [1, 2, 3, [4, 5, 6], [[7, 8], [9, 10]]]
print flatten(a)
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
Regards,
mk
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I think it may be just a 'little' more efficient to do this:
def flatten(x, res=None):
if res is None:
res = []
for el in x:
if isinstance(el, (tuple, list)):
flatten(el, res)
else:
res.append(el)
return res
Brian Vanderburg II
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