Learn Python: List comprehension explanation with Example

List Comprehension is a concept where you can use to construct list in easy way and it is implemented in python 2.0
It provides a compact way of mapping a list into another list by applying a function to each of the elements of the list.

Lets look at the Example with For loop :

And the output is

This can be done using List comprehension in single line. List Comprehension works on expression.

Exercise:

Take a list, say for example this one:

  a = [1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89]

and write a program that prints out all the elements of the list that are less than 5.
Extras:

Instead of printing the elements one by one, make a new list that has all the elements less than 5 from this list in it and print out this new list.
Write this in one line of Python.
Ask the user for a number and return a list that contains only elements from the original list a that are smaller than that number given by the user.

My Solution: