To retrieve a value from a dictionary, you use Python’s indexing syntax: ... we set some_var to the integer 128 before defining the dictionary. The key "variable" would contain the value 128.

Defining a list in Python is easy—just use the bracket syntax to indicate items in a list, like this: list_of_ints = [1, 2, 3] Items in a list do not have to all be the same type; they can be ...