Group a list by a function
Write a Python program to group the elements of a list by the result of a function such as `len`. Step-by-step explanation, colour-coded code and real output.
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Write a Python program to count the number of keys and the total characters in them. Step-by-step explanation, colour-coded code and real output.
Pair keys with their single list item
Write a Python program to turn {key: [value]} into one dictionary per combination. Step-by-step explanation, colour-coded code and real output.
Frequency of values
Write a Python program to count how often each value appears in a dictionary. Step-by-step explanation, colour-coded code and real output.
Keys with the shortest lists
Write a Python program to find the keys whose list values are the shortest. Step-by-step explanation, colour-coded code and real output.
Keys of the top 2 values
Write a Python program to find the keys of the two largest values. Step-by-step explanation, colour-coded code and real output.
Keep even numbers in list values
Write a Python program to keep only even numbers in each list value. Step-by-step explanation, colour-coded code and real output.
Print the keys
Write a Python program to print the keys of a dictionary, capitalised. Step-by-step explanation, colour-coded code and real output.
Remove keys whose values contain a substring
Write a Python program to remove entries whose value contains any of the given substrings. Step-by-step explanation, colour-coded code and real output.
Remove keys with large values
Write a Python program to remove keys whose values are greater than n. Step-by-step explanation, colour-coded code and real output.
Values for keys found in a list
Write a Python program to get the values of dictionary keys that are also in a list. Step-by-step explanation, colour-coded code and real output.
Nested dictionary from a list of keys
Write a Python program to nest each item of a dictionary under a key from a list. Step-by-step explanation, colour-coded code and real output.
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