Using : For Multiple Slicing In List Or Numpy Array

I'm having some difficulty trying to figure out how to do extract multiple values in a list that are spaced some indices apart. For example, given a list l = [0,1,2,3,4,5,6,7,8,9,1

Solution 1:

I think you need numpy.r_ for concanecate indices:

print (np.r_[1:4, 6:10])
[1 2 3 6 7 8 9]

Solution 2:

Using list comprehension, you can do:

>>> [item for item in l[1:4] + l[6:-1]]
[1, 2, 3, 6, 7, 8, 9]

You can also use extend() like this:

>>> res = l[1:4]
>>> res.extend(l[6:-1])
>>> res
[1, 2, 3, 6, 7, 8, 9]