title: Python 3 changing variable in function from another function
body: <p>I would like to access the testing variable in main from testadder, such that it will add 1 to testing after testadder has been called in main.</p>
  
  <p>For some reason I can add 1 to a list this way, but not variables. The nonlocal declaration doesn't work since the functions aren't nestled.</p>
  
  <p>Is there a way to work around this?</p>
  
  <pre><code>def testadder(test, testing):
      test.append(1)
      testing += 1
  
  def main():
      test = []
      testing = 1
      testadder(test, testing)
      print(test, testing)
  
  main()
  </code></pre>