I need to remove excessive duplicates of particular element from the list, that is, if there’s more than
max_dup duplicates of selected elements in a slice of the list, leave at most
max_dup elements in place. Obviously, stability (retaining order of elements in the list) is a must. E.g.
>>> remove_excessive_duplicates([1, '', '', '', 2, '', 3, '', '', '', '', '', 4, '']) [1, '', '', 2, '', 3, '', '', 4, '']
The code I wrote:
def remove_excessive_duplicates(lst, dup='', max_dup=2): new_lst =  dcnt = 0 for elem in lst: if elem == dup: dcnt += 1 else: dcnt = 0 if dcnt > max_dup: continue new_lst.append(elem) return new_lst
It works, but I’m wondering if there’s some cleverer way to do it, or the one that uses logic of some Python builtins to achieve the same goal.
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