[f(x) if condition else g(x) for x in sequence]
numbers = [1, 2, 3, 4, 5, 6]
a = [num * 2 if num % 2 == 0 else num/2 for num in numbers] # [0.5, 4, 1.5, 8, 2.5, 12]
bEven = [num for num in numbers if num % 2 == 0] # 2, 4, 6
bOdd = [num for num in numbers if num % 2 != 0] # 1, 3, 5