def call_iter1(x):
"""
>>> [ i for i in iter([1,2,3]) ]
[1, 2, 3]
>>> [ i for i in call_iter1([1,2,3]) ]
[1, 2, 3]
"""
return iter(x)
class Ints(object):
def __init__(self):
self.i = 0
def __call__(self):
self.i += 1
if self.i > 10:
raise ValueError
return self.i
def call_iter2(x, sentinel):
"""
>>> [ i for i in iter(Ints(), 3) ]
[1, 2]
>>> [ i for i in call_iter2(Ints(), 3) ]
[1, 2]
"""
return iter(x, sentinel)