title: How do I get the current PyInterpreterState?
body: <p>I'd like to create a <code>PyThreadState</code> since there doesn't appear to be one for the current thread.</p>
  
  <p>How do I get the current PyInterpreterState to pass to <code>PyThreadState_New(...)</code>, or is that something that I should only do if I'm embedding an interpreter (and thus have created it), rather than calling into a library from python?</p>