Slicing Python lists vs Slicing R vectors -

in r can this

> = (10:19) >  [1] 10 11 12 13 14 15 16 17 18 19 > b = c(4,7) > b [1] 4 7 > > a[b] [1] 13 16 > > a[-b] [1] 10 11 12 14 15 17 18 19 

i suppose there equally elegant way of doing python (2.7) lists, haven't found yet. i'm particularly interested in a[-b] bit. thoughts?

[edit] [10,11,12,13,14,15,16,17,18,19], b [4,7] (indices a)

you using list comprehensions

[n n, in enumerate(a) if not in b] 

or using numpy:

x = np.arange(10, 20) y = [2, 7]  x[y]