Diez B. Roggisch wrote:
Pierre wrote:
Hello Everyone,
I would like to know if it is possible to extract a sub-list from a
list ?
typically if :
L =[[1, 2, 3],[4, 5, 6],[3] ]
How to extract easily the elements 0 and 2 of L in order to get :
L2 =[[1, 2, 3],[3] ]
Moreover, I would like to know if it is possible to use logical
indexation such that :
index = [ True, False, True]
L2 = L
or usual indexation, something like
index=[0, 2]
L2 = L
I tried, but failed...
Thanks for your help
index = [ True, False, True]
L2 = [v for i, v in enumerate(L) if index[i]]
Or:
L =[[1, 2, 3],[4, 5, 6],[3] ]
index = [ True, False, True]
from itertools import izip
L2 = [v for i, v in izip(index, L) if i]
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