In 3.6, this will be ordered. Python creates a dict out of the keywords arguments, so before 3.6, this creates the old hash-ordered dict which is covered to an

In 3.6, this will be ordered. Python creates a dict out of the keywords arguments, so before 3.6, this creates the old hash-ordered dict which is covered to an OrderedDict. But, as the other commenter mentioned, a list of 2-tuples is the safe bet.