Problem Set 6
^^^^^^^^^^^^^

.. admonition:: Problem 6.1
   :class: Note

   Write a function ``even_print(ls)`` that takes a list of integers ``ls`` as its argument and prints out only the even elements of the list.

.. admonition:: Problem 6.2
   :class: Note

   Write a *single line* of Python code to test if a particular value appears in a list (e.g. test if ``5`` appears in ``[1,7,5,3]``.)

.. admonition:: Problem 6.3
   :class: Note

   Generate the following lists, using ``range``:
     1. All integers from 0 to 17
     2. All integers from -10 to 0
     3. All integers from 10 to 0 (that is: counting *down* instead of up)
     4. All even integers from 0 to 20

.. admonition:: Problem 6.4
   :class: Note

   Write a function ``beer_on_wall`` that will print out "n bottles of beer on the wall" for all n from 99 down to 1 (you must use a list).
   **Hint**: you can use ``range`` and a ``for`` loop