convert range(0,10) to a list of lists in Python3

Question

I need to create a list of lists from a range: for example range(0,10) -->[[0,5],[6,10]]

I think possible to do it using list comprehension but cannot figure out a way for the same I tried this list_com = [[x, x + 5] for x in range(0, 10, 5)] but it gives [[0, 5], [5, 10]]

and if I try, list_com = [[x + 1, x + 5] for x in range(0, 10, 5)] I get [[1, 5], [6, 10]] which is close except for first list, where I want [[0,5],[6,10]]

Is there a better way to do it or fix the above to remove the first list bug.

Answer 1

The first sub-element differs from the others in that it has an inclusive range of 6 whereas all others have a range of 5.

You can eliminate the complexity of a conditional test in a list comprehension by constructing the first sub-element separately as follows:

def genElements(g=5, n=200):
    yield [0, g]
    for i in range(g, n, g):
        yield [i+1, i+g]

l = list(genElements())
print(l)