Available under Creative Commons-NonCommercial-ShareAlike 4.0 International License.
Dictionaries have a method called items that returns a list of tuples, where each tuple is a key-value pair. 1
>>> d = {'a':10, 'b':1, 'c':22}>>> t = d.items()>>> print t[('a', 10), ('c', 22), ('b', 1)]
As you should expect from a dictionary, the items are in no particular order.
However, since the list of tuples is a list, and tuples are comparable, we can now sort the list of tuples. Converting a dictionary to a list of tuples is a way for us to output the contents of a dictionary sorted by key:
>>> d = {'a':10, 'b':1, 'c':22}>>> t = d.items()>>> t[('a', 10), ('c', 22), ('b', 1)]>>> t.sort()>>> t[('a', 10), ('b', 1), ('c', 22)]
The new list is sorted in ascending alphabetical order by the key value.
- 1244 reads
