alf wrote: > Hi, > > I have a following task: let's say I do have an iterator returning the > some objects: > > >>i=<iterator> > >>i.next() > 1 > >>i.next() > 'abgfdgdfg' > >>i.next() > <some object> > > > For some reason I need to wrap thos objects with a list. I thought I > could have a smart lamda or simple function class yielding following result: > > > >>i=<iterator> > >>i=list_wrapper(i) > >>i.next() > [1] > >>i.next() > ['abgfdgdfg'] > >>i.next() > [<some object>] > > > What would thesolution? >
If I understand you correctly, something like this: >>> stuff = ['a', 'b', 'c', 'd'] >>> i1 = iter(stuff) >>> i1.next() 'a' >>> i1.next() 'b' >>> class LW(object): # ListWrapper ... def __init__(self, i): ... self.theiter = i ... def next(self): ... return [self.theiter.next()] ... >>> i2 = iter(stuff) >>> x = LW(i2) >>> x.next() ['a'] >>> x.next() ['b'] >>> x.next() ['c'] >>> x.next() ['d'] >>> x.next() Traceback (most recent call last): File "<stdin>", line 1, in ? File "<stdin>", line 5, in next StopIteration Cheers, John -- http://mail.python.org/mailman/listinfo/python-list
