Glossary
conditional expression:
An expression that has one of two values, depending on a condition.list comprehension:
An expression with a for loop in square brackets that yields a new list.generator expression:
An expression with a for loop in parentheses that yields a generator object.multiset:
A mathematical entity that represents a mapping between the elements of a set and
the number of times they appear.factory:
A function, usually passed as a parameter, used to create objects.