python dictionary change value or create key code example

Example 1: python change a key in a dictionary

# Basic syntax:
# Approach 1:
dictionary[new_key] = dictionary[old_key]
del dictionary[old_key]

# Approach 2:
dictionary[new_key] = dictionary.pop(old_key)

Example 2: how to change key to value and versa in python dictionary

dict = {value:key for key, value in dict.items()}