19-08-2009 o 22:52:54 iu2 <[email protected]> wrote:
On Aug 19, 11:39 pm, "Diez B. Roggisch" <[email protected]> wrote:
iu2 schrieb:
> Hi all,
> I need to create a dictionary out of a list.
> Given the list [1, 2, 3, 4, 5, 6]
> I need the dictionary: {1:2, 3:4, 5:6}
dict(zip(l[::2], l[1::2]))
Or (for long lists, when memory becomes expensive):
dict(li[i:i+2] for i in xrange(0, len(li), 2))
Or probably better:
from itertools import islice, izip
dict(izip(islice(li, 0, None, 2), islice(li, 1, None, 2)))
Cheers,
*j
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Jan Kaliszewski (zuo) <[email protected]>
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