old_contents: # Charles Robison
  # 2016.10.18
  # Dictionary and Set Lab
  
  # Create a dictionary containing “name”, “city”, and “cake”
  # for “Chris” from “Seattle” who likes “Chocolate”.
  
  d = {'name': 'Chris', 'city': 'Seattle', 'cake': 'Chocolate'}
  
  
new_contents: # Charles Robison
  # 2016.10.18
  # Dictionary and Set Lab
  
  # Create a dictionary containing “name”, “city”, and “cake”
  # for “Chris” from “Seattle” who likes “Chocolate”.
  d = {'name': 'Chris', 'city': 'Seattle', 'cake': 'Chocolate'}
  
  #Display the dictionary.
  d
  
  # Delete the entry for “cake”.
  del d['cake']
  
  # Display the dictionary.
  d
  
  # Add an entry for “fruit” with “Mango” and display the dictionary.
  d['fruit'] = 'Mango'
  d
  
  # Display the dictionary keys.
  d.keys()
  
  # Display the dictionary values.
  d.values()
  
  # Display whether or not “cake” is a key in the dictionary
  # (i.e. False) (now).
  'cake' in d
  
  # Display whether or not “Mango” is a value in the dictionary
  #  (i.e. True).
  'Mango' in d.values()
  
  # Using the dictionary from item 1: Make a dictionary using
  # the same keys but with the number of ‘t’s in each value.
  
  # Create sets s2, s3 and s4 that contain numbers from zero through
  # twenty, divisible 2, 3 and 4.
  
  # Display the sets.
  # Display if s3 is a subset of s2 (False)
  # and if s4 is a subset of s2 (True).
  
  
  # Create a set with the letters in ‘Python’ and add ‘i’ to the set.
  
  # Create a frozenset with the letters in ‘marathon’
  # display the union and intersection of the two sets.
  
  
  
  
  
  
  
  
  
subject: Add first set of exercises.