change key of dict python 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: modify dict key name python

a_dict[new_key] = a_dict.pop(old_key)