How to get the “next” item in an OrderedDict?

Question

I\'m using an OrderedDict to random access a list, but now want the next item in the list from the one that I have:

foo = OrderedDict([(\'apple\', 4         


        

Answer 1

Python 3.X

dict.items would return an iterable dict view object rather than a list. We need to wrap the call onto a list in order to make the indexing possible:

>>> from collections import OrderedDict
>>> 
>>> foo = OrderedDict([('apple', 4), ('banana', 3), ('orange', 2), ('pear', 1)])
>>> 
>>> def next_item(odic, key):
...     return list(odic)[list(odic.keys()).index(key) + 1]
... 
>>> next = next_item(foo, 'apple')
>>> print(next, foo[next])
banana 3