How to obtain the absolute value of numbers?

Question

I have a list of numbers that looks like the one below:

[2, 3, -3, -2]

How can I obtain a list of values that contain the absolute value of every value in the above list? In this case it would be:

[2, 3, 3, 2]

Answer 1

1. You can use abs and map functions like this

   myList = [2,3,-3,-2]
   print map(abs, myList)
   

   Output

   [2, 3, 3, 2]
   

2. Or you can use list comprehension like this

   [abs(number) for number in myList]
   

3. Or you can use list comprehension and a simple if else condition like this

   [-number if number < 0 else number for number in myList]