python can you change key in dictionary code example

Example 1: change dictionary value python

my_dict  =  {
   'foo': 42,
   'bar': 12.5
}
my_dict['foo']  =  "Hello"
print(my_dict['foo'])
#This will give the output:

'Hello'

Example 2: python change dictionary key

dictionary[new_key] = dictionary[old_key]
del dictionary[old_key]