Move a key:value in a dictionary

[snippsat]

Python 3.9,as merge together with batman dict first it will keep order,not that it matter to much as mention.

>>> d = batman | super_hero_names
>>> d
{'Batman': 'Bruce', 'Superman': 'Clark Kent', 'Spiderman': 'Peter Parker'}
>>> d.update(Batman = "Bruce Wayne")
>>> d
{'Batman': 'Bruce Wayne', 'Superman': 'Clark Kent', 'Spiderman': 'Peter Parker'}

For Python 3.8 d = {**batman, **super_hero_names}.