title: How to do "if-for" statement in python?
body: <p>With python, I would like to run a test over an entire list, and, if all the statements are true for each item in the list, take a certain action.</p>
  
  <p>Pseudo-code: If "test involving x" is true for every x in "list", then do "this".</p>
  
  <p>It seems like there should be a simple way to do this. </p>
  
  <p>What syntax should I use in python? </p>