在python中对字典的键进行排序

Question

dict:

d1 = {'b,a':12,'b,c,a':13}

Code:

x = collections.OrderedDict(sorted(d1.items()))
print(x)

Not getting the expected output.

Expected Output:

d1 = {'a,b': 12, 'a,b,c':13}

Answer 1

It looks like you don't actually want to sort the keys, you want to re-arrange the non-comma substrings of your keys such that these substrings are ordered.

>>> d1 = {'b,a':12,'b,c,a':13}
>>> {','.join(sorted(key.split(','))):val for key, val in d1.items()}
{'a,b': 12, 'a,b,c': 13}

Answer 2

d1.items(): returns a list of (key, value) tuples

sorted(d1.items()): simply sorts the above list

If you want to sort the items in your keys, then you need to run sort on your keys.