Multiprocessing to separate Photobooth logic and GUI. Pipes to connect them to each other

photobooth/Photobooth.py

@@ -1,9 +1,63 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-import Config, PyQt5Gui
+from Config import Config
+from PyQt5Gui import PyQt5Gui
+
+from multiprocessing import Pipe, Process
+
+from time import sleep
+
+
+class Photobooth:
+
+    def __init__(self):
+
+        pass
+
+
+    def run(self, send, recv):
+
+        while True:
+            try:
+                event = recv.recv()
+            except EOFError:
+                return 1
+            else:
+                print('Photobooth: ' + event)
+                self.trigger(send)
+
+        return 0
+
+
+    def trigger(self, send):
+
+        send.send('Pose')
+
+        sleep(3)
+
+        send.send('Picture')
+
+        sleep(2)
+
+        send.send('idle')
+
+
+def main_photobooth(send, recv):
+
+    photobooth = Photobooth()
+    return photobooth.run(send, recv)
+
 
 def main(argv):
 
-    config = Config.Config('photobooth.cfg')
-    return PyQt5Gui.run(argv, config)
+    config = Config('photobooth.cfg')
+
+    event_recv, event_send = Pipe(duplex=False)
+    gui_recv, gui_send = Pipe(duplex=False)
+
+    photobooth = Process(target=main_photobooth, args=(gui_send, event_recv), daemon=True)
+    photobooth.start()
+
+    gui = PyQt5Gui(argv, config)
+    return gui.run(event_send, gui_recv)