Last element in every bin defined by 'step' in range

Question

When we use range(start, stop, step) it returns every first element in every bin defined by step.

For example,

list(range(1, 10, 5))

returns

[1, 6]

But how can i get the last elements from every bin defined by step? I expect to get

[5, 10]

Answer 1

You could simply swap the values in the range function to get the reverse like so:

print(list(range(10, 0, -5)))

This returns:

[10, 5]

You could do list(range(10, 0, -5))[::-1] to get [5, 10].

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Or you could write your own generator function like so:

def range_end(start, end, step):
    i = end

    while i > start:
        yield i
        i -= step

print(list(range_end(1, 10, 5)))

This returns:

[10, 5]

---

And if you want to have it reversed simply do:

print(list(range_end(1, 10, 5))[::-1])

This returns:

[5, 10]