GUI starts properly when ConfigurationWindow wasn't executed

syncplay/ui/ConfigurationGetter.py

@@ -8,6 +8,8 @@ from syncplay.players.playerFactory import PlayerFactory
 import codecs
 try: 
     from syncplay.ui.GuiConfiguration import GuiConfiguration
+    from PySide import QtGui #@UnresolvedImport
+    from PySide.QtCore import Qt, QCoreApplication
 except ImportError:
     GuiConfiguration = None
 
@@ -243,6 +245,8 @@ class ConfigurationGetter(object):
             self._loadRelativeConfiguration()
         if(not self._config['noGui']):
             from syncplay.vendor import qt4reactor
+            if QCoreApplication.instance() is None:
+                self.app = QtGui.QApplication(sys.argv)
             qt4reactor.install()
         return self._config
     

syncplay/ui/GuiConfiguration.py

@@ -1,5 +1,5 @@
 from PySide import QtCore, QtGui
-from PySide.QtCore import QSettings, Qt
+from PySide.QtCore import QSettings, Qt, QCoreApplication
 from PySide.QtGui import QApplication, QLineEdit, QCursor, QLabel, QCheckBox, QDesktopServices, QIcon
 
 import os
@@ -12,7 +12,8 @@ class GuiConfiguration:
         self._availablePlayerPaths = []
 
     def run(self):
-        self.app = QtGui.QApplication(sys.argv)
+        if QCoreApplication.instance() is None:
+            self.app = QtGui.QApplication(sys.argv)
         dialog = ConfigDialog(self.config, self._availablePlayerPaths)
         dialog.exec_()