Suppose that I have a dictionary containing dictionary like this example:
a_dict = {
  'abcd': {'name': 'John', 'height': 180},
  'asdf': {'name': 'Lex', 'height': 160},
  'csxf': {'name': 'Amber', 'height': 193},
}
How do I sort the dictionary using value of the key in child dictionary, i.e: value of the 'height' key?
 
     
    