Dictionary Practice - Parsons Problems¶
Try to solve the following mixed up code problems. You can use the “Help Me” button to make the problem easier if you have made at least three attempts to solve the problem.
Put the blocks in order to define the function make_dir that takes two lists (l1 and l2) of equal length and returns a dictionary where the items in l1 are the keys and the items in l2 are the values. For example, make_dir([‘a’, ‘c’], [5, 0]) returns {‘a’: 5, ‘c’: 0}.
Put the blocks in order to define the function make_dir which takes a list of tuples (tuple_list) and returns a dictionary where the first item in each tuple is the key and the second is the value. For example, make_dir([(‘gray’, -3), (‘blue’, 2)]) returns {‘gray’: -3, ‘blue’: 2}.
Put the blocks in order to define the function get_tuple which takes a dictionary dict and a key and if the key is found in the dictionary it returns (key, value) otherwise it returns (key, ‘Not Found’). For example, get_tuple({‘a’: 0}, ‘c’) returns (‘c’, ‘Not Found’), and get_tuple({‘a’: 0}, ‘a’) returns (‘a’, 0)
Put the blocks in order to define the function greater_dictionary which takes a dictionary d and an integer cutoff and returns a dictionary
that contains only the key-value pairs where the value is greater than
or equal to the cutoff. For example, greater_dict({‘a’: 20, ‘b’: 10}, 15) returns {‘a’: 20}.
Put the blocks in order to define the function get_counts which takes a list of strings s_list and returns a dictionary that has the number of times each unique string appears in the list. For example, get_counts([‘a’,’b’,’a’]) returns {‘a’:2, ‘b’:1}.