Good job! When grouping elements, we can also use the get() function to shorten the code. Check this out:

names = ['John', 'Mary', 'Alice', 'Kate', 'Michael', 'Samantha', 'Adrian', 'Gray']

groups = {}
for name in names:
  key = len(name)
  groups[key] = groups.get(key, []) + [name]

print(groups)

The code above works in the same way as the previous code, but it is much shorter. Instead of checking if a given key exists, we use groups.get(key, []). This code will either return the existing list for the given key or an empty list. Then all we need to do is add a one-element list with the given name ([name]).