splitting or parsing control characters

[volcano63]

is only slightly worse than

re.split('([{}]*)'.format(cs), 'Split   this string and   store    splits')

posted before that gives list instead of list of tuples.

Sorry, professor, but split does not give you "run" of the same separators - I believe OP asked to preserve each separator with its length

Neither one of them does what is wanted (split different separators while keeping "runs" of same separators) without some additional processsing.

list(itertools.chain(*re.findall(r'([^{0}]+)({0}*)'.format(cs), 'Split   this   string and   store splits')))

Mission accomplished. Yalla, next question?

Oh, and space was used just as an example