This is rather small collection of round robin utilities.

Some examples:

``` >>> import roundrobin >>> get_roundrobin = roundrobin.basic(["A", "B", "C"]) >>> ''.join([get_roundrobin() for _ in range(7)]) 'ABCABCA' >>> # weighted round-robin balancing algorithm as seen in LVS >>> get_weighted = roundrobin.weighted([("A", 5), ("B", 1), ("C", 1)]) >>> ''.join([get_weighted() for _ in range(7)]) 'AAAAABC' >>> # smooth weighted round-robin balancing algorithm as seen in Nginx >>> get_weighted_smooth = roundrobin.smooth([("A", 5), ("B", 1), ("C", 1)]) >>> ''.join([get_weighted_smooth() for _ in range(7)]) 'AABACAA' ```