python how to invert a dictionary code example

Example 1: invert dictionary python

inv_map = {v: k for k, v in my_map.items()}

Example 2: invert dictionary python

orig = { 1:'A',  2:'B',  3:'C' }
new = dict(zip(orig.values(), orig.keys()))
new == {'A': 1, 'B': 2, 'C': 3} #True