The documentation for the threading module uses the words "alive" and "active" interchangeably for describing a thread whose start() method has been called, but whose run() method has not finished. This patch intends to make the docs a little clearer by only using the "alive" word. The patch fixes Bug #912943 and is supposed to obsolete Patch #1107656 (which changes "alive" -> "active" and deprecates Thread.isAlive()).