List Comprehensions

  • A list comprehension is an expression that creates a list by iterating over another container.
  • A basic list comprehension:
    1. [i*2 for i in [1, 5, 10]]
    2. Output: [2, 10, 20]
  • List comprehension with if condition:
    1. [i*2 for i in [1, -2, 10] if i>0]
    2. Output: [2, 20]
  • List comprehension with an if and else condition:
    1. [i*2 if i>0 else 0 for i in [1, -2, 10]]
    2. Output: [2, 0, 20]