title: Passing variables through Selenium send.keys instead of strings
body: <p>I'm trying to use Selenium for some app testing, and I need it to plug a variable in when filling a form instead of a hardcoded string. IE: </p>
  
  <p>this works
  <code>name_element.send_keys("John Doe")</code><br>
  but this doesnt
  <code>name_element.send_keys(username)</code></p>
  
  <p>Does anyone know how I can accomplish this? Pretty big Python noob, but used Google extensively to try and find out.</p>