python count items in list and keep their order of occurrance

Question

Given: a list, such as l=[4,4,4,4,5,5,5,6,7,7,7] Todo: get the count of an element and keep their occurrence order, e.g.: [(4,4),(5,3),(6,1),(7,3)]

I could do it wit

Answer 1

>>> import itertools
>>> [(k, len(list(g))) for k, g in itertools.groupby(l)]
[(4, 4), (5, 3), (6, 1), (7, 3)]

This keeps the order of the items and also allows repeated items:

>>> l=[4,4,4,4,5,5,5,6,7,7,7,4,4,4,4,4]
>>> [(k, len(list(g))) for k, g in itertools.groupby(l)]
[(4, 4), (5, 3), (6, 1), (7, 3), (4, 5)]