Itertools Zip Two List into each other
Question: 
    c = list(itertools.chain.from_iterable(zip(list_a, list_b)))
    

I have two list `list_a` and `list_b`

`list_a` has one more element than `list_b` and i want to insert between two
elements of a one element of b.

Unfortunately this method from above deletes the last element of `list_a` in
the result list c. How can i fix this? Python 2.7


Answer: I don't know enough about `itertools` to say much more, but if you only need
to append the last element of `list_a` to `c`, why not do just that?

    
    
    import itertools
    
    list_a = [1,3,5,7,9]
    list_b = [2,4,6,8]
    
    c = list(itertools.chain.from_iterable(zip(list_a, list_b)))
    # c is [1, 2, 3, 4, 5, 6, 7, 8]
    
    c.append(list_a[-1])
    # after append c is [1, 2, 3, 4, 5, 6, 7, 8, 9]
    

