array next pointer

[Anjanesh Lekshminarayanan]

>>> a = ['cat','dog','elephant']
>>> a.next()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'list' object has no attribute 'next'
>>>
Is there something that imtates PHP's next() ? (http://php.net/next)
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