title: Wing ide "run" button is greyed out unless I save the file
body: <p>Whenever I create a new wing file in the wing IDE interface, I find the "run code" (play symbol) button is greyed out and I can't click it unless I save the file somewhere on my computer. It didn't used to to this.</p>
  
  <p>This is annoying because it forces you to save every single code you write even if it's just 5 lines you've written to test something out.</p>
  
  <p>I can't recall exactly when the button changed, I didn't notice it immediately. But I've updated both my wing IDE and python to the latest version. I've also shifted the directory that I keep all my python saves in, but I can't see why that would matter.</p>
  
  <p>I've taken a look through settings, but I couldn't make much sense of it. I'm new to programming.</p>