import itertools class IterHelper(object): iterable = None def __init__(self, iterable = None): self.iterable = iterable def __iter__(self): return self.iterable def next(self): return self.iterable.next() def foreach(self, func): return IterHelper(itertools.imap(func, self.iterable)) def filter(self, predicate): return IterHelper(itertools.ifilter(predicate, self.iterable)) def to_list(self): return list(self.iterable) list_of_words = "Give a Shit Teach and Learn Share the Pain Own It Act Transparently".split() is_odd_func = lambda word:len(word) % 2 == 1 IterHelper(list_of_words).filter(is_odd_func).to_list()
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