How to use python's list comprehension?

List comprehensions provide a concise way to create lists in Python.

Example to create a list of squares:

  numbers = [1, 2, 3, 4, 5]
  squares = [x*x for x in numbers]
  

Solution:

A list comprehension consists of an expression followed by a for clause, and can have one or more if clauses. The resulting list will contain the values produced by the expression, evaluated for each item that meets the conditions.