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Editing: newnext.cpython-310.pyc
o ,�]� � @ s$ d Z eZe� Zefdd�ZdgZdS )a� This module provides a newnext() function in Python 2 that mimics the behaviour of ``next()`` in Python 3, falling back to Python 2's behaviour for compatibility if this fails. ``newnext(iterator)`` calls the iterator's ``__next__()`` method if it exists. If this doesn't exist, it falls back to calling a ``next()`` method. For example: >>> class Odds(object): ... def __init__(self, start=1): ... self.value = start - 2 ... def __next__(self): # note the Py3 interface ... self.value += 2 ... return self.value ... def __iter__(self): ... return self ... >>> iterator = Odds() >>> next(iterator) 1 >>> next(iterator) 3 If you are defining your own custom iterator class as above, it is preferable to explicitly decorate the class with the @implements_iterator decorator from ``future.utils`` as follows: >>> @implements_iterator ... class Odds(object): ... # etc ... pass This next() function is primarily for consuming iterators defined in Python 3 code elsewhere that we would like to run on Python 2 or 3. c C s� z'z| � � W W S ty' z| �� W Y W S ty& td�| jj���w w tyA } z|tu r5|�|W Y d}~S d}~ww )z� next(iterator[, default]) Return the next item from the iterator. If default is given and the iterator is exhausted, it is returned instead of raising StopIteration. z'{0}' object is not an iteratorN) �__next__�AttributeError�next� TypeError�format� __class__�__name__� StopIteration� _SENTINEL)�iterator�default�e� r �9/usr/lib/python3/dist-packages/future/builtins/newnext.py�newnext+ s$ �����r N)�__doc__r � _builtin_next�objectr r �__all__r r r r �<module> s &
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