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POwxPython, Threads, and PostEvent between modules
 

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    <p>I'm relatively new to wxPython (but not Python itself), so forgive me if I've missed something here.</p> <p>I'm writing a GUI application, which at a very basic level consists of "Start" and "Stop" buttons that start and stop a thread. This thread is an infinite loop, which only ends when the thread is stopped. The loop generates messages, which at the moment are just output using <code>print</code>. </p> <p>The GUI class and the infinite loop (using <code>threading.Thread</code> as a subclass) are held in separate files. What is the best way to get the thread to push an update to something like a <code>TextCtrl</code> in the GUI? I've been playing around with <code>PostEvent</code> and <code>Queue</code>, but without much luck.</p> <p>Here's some bare bones code, with portions removed to keep it concise:</p> <p><b>main_frame.py</b></p> <pre><code>import wx from loop import Loop class MainFrame(wx.Frame): def __init__(self, parent, title): # Initialise and show GUI # Add two buttons, btnStart and btnStop # Bind the two buttons to the following two methods self.threads = [] def onStart(self): x = Loop() x.start() self.threads.append(x) def onStop(self): for t in self.threads: t.stop() </code></pre> <p><b>loop.py</b></p> <pre><code>class Loop(threading.Thread): def __init__(self): self._stop = threading.Event() def run(self): while not self._stop.isSet(): print datetime.date.today() def stop(self): self._stop.set() </code></pre> <p>I did, at one point, have it working by having the classes in the same file by using <code>wx.lib.newevent.NewEvent()</code> along <a href="http://wiki.wxpython.org/index.cgi/AsynchronousSockets" rel="nofollow noreferrer">these lines</a>. If anyone could point me in the right direction, that'd be much appreciated.</p>
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