In [3]:

    

#iterate without using for loop
def print_each(iterable):
    iterator = iter(iterable)
    while True:
        try:
            item = next(iterator)
        except StopIteration:
            break
        else:
            print(item)


    

In [67]:

    

print_each([1,2,3,4])


    

    




1
2
3
4

In [61]:

    

it = iter([1,2,3,4])


    

In [62]:

    

i = next(it)
print i


    

    




1

In [63]:

    

i = next(it)
print i


    

    




2

In [64]:

    

i = next(it)
print i


    

    




3

In [65]:

    

i = next(it)
print i


    

    




4

In [66]:

    

i = next(it)
print i


    

    




---------------------------------------------------------------------------
StopIteration                             Traceback (most recent call last)
<ipython-input-66-092a1c07bd6e> in <module>()
----> 1 i = next(it)
      2 print i

StopIteration: 

In [ ]: