Sorting a dictionary by its values can be done using the sorted() function with a custom key.

1. Using sorted():
   • The sorted() function returns a list of tuples sorted by the desired key.
2. Code Example:
   
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   my_dict = {'a': 3, 'b': 1, 'c': 2}
   sorted_items = sorted(my_dict.items(), key=lambda x: x[1])
   sorted_dict = dict(sorted_items)
   print(sorted_dict)  # Output: {'b': 1, 'c': 2, 'a': 3}
   

   
   
3. Using the itemgetter Function:
   • The itemgetter can also be used for more readability.
4. Alternative Code:
   
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   from operator import itemgetter
   
   my_dict = {'a': 3, 'b': 1, 'c': 2}
   sorted_items = sorted(my_dict.items(), key=itemgetter(1))
   sorted_dict = dict(sorted_items)
   print(sorted_dict)  # Output: {'b': 1, 'c': 2, 'a': 3}
   

   
   
5. Explanation:
   • sorted() returns a list of tuples which can then be converted back to a dictionary.
   • itemgetter(1) fetches the value for sorting.