diff --git a/win_venv/main.py b/win_venv/main.py
index d7aeaf8..1c8314f 100644
--- a/win_venv/main.py
+++ b/win_venv/main.py
@@ -15,6 +15,7 @@ def files(path):
         if os.path.isfile(os.path.join(path, file)):
             yield file
 
+
 class LibraryTableButtons(QWidget):
     def __init__(self, parent=None):
         super(LibraryTableButtons,self).__init__(parent)
@@ -28,7 +29,9 @@ class LibraryTableButtons(QWidget):
 
         self.setLayout(layout)
 
+
 class LibraryTable(QTableWidget):
+
     def __init__(self, parent=None):
         QTableWidget.__init__(self)
         self.setColumnCount(3)
@@ -57,51 +60,51 @@ class LibraryTable(QTableWidget):
             if index.isValid():
                 print(index.row(), index.column())
 
-    
+
+class MainWindow(QMainWindow):
+    def __init__(self):
+        super().__init__()
+        self.initUI()
+        
+    # Show raw uploaded files
+    def showLibrary(self):
+        libTable = LibraryTable()
+        self.setCentralWidget(libTable)
+        
+    def initUI(self):
+        self.setGeometry(0, 0, 600, 400) 
+        self.setWindowTitle('VisionScore')
+        scriptDir = os.path.dirname(os.path.realpath(__file__))
+        self.setWindowIcon(QIcon(scriptDir + os.path.sep + 'static/v_logo.jpg'))
+        
+        # Toolbar
+        menuBar = self.menuBar()
+        homeMenu = QMenu("&Home", self)
+        menuBar.addMenu(homeMenu)
+        homeMenu.addAction("Load new file")
+
+        libraryAct = QAction('&Library', self)
+        libraryAct.triggered.connect(self.showLibrary)
+        menuBar.addAction(libraryAct)
+
+        # Exit app
+        exitAct = QAction('&Exit', self)
+        exitAct.setShortcut('Ctrl+Q')
+        exitAct.setStatusTip('Exit')
+        exitAct.triggered.connect(qApp.quit)
+        homeMenu.addAction(exitAct)
+        
+        helpMenu = menuBar.addMenu("&Help")  
+        
+        self.show()
+
+
 def main():
     app = QApplication(sys.argv)
 
-    #w = QWidget()
-    w = QMainWindow()
-    w.setGeometry(0, 0, 600, 400) 
-    w.setWindowTitle('VisionScore')
-    scriptDir = os.path.dirname(os.path.realpath(__file__))
-    w.setWindowIcon(QIcon(scriptDir + os.path.sep + 'static/v_logo.jpg'))
-    
-    '''
-    label = QLabel()
-    pixmap = QPixmap(scriptDir + os.path.sep + 'static/visionscore_logo.jpg')
-    label.setPixmap(pixmap)
-    label.resize(pixmap.width(), pixmap.height())
-    label.setAlignment(QtCore.Qt.AlignTop)
-    w.setCentralWidget(label)
-    '''
-    # Toolbar
-    menuBar = w.menuBar()
-    homeMenu = QMenu("&Home", w)
-    menuBar.addMenu(homeMenu)
-    homeMenu.addAction("Load new file")
-
-    # Show raw uploaded files
-    def showLibrary():
-        libTable = LibraryTable()
-        w.setCentralWidget(libTable)
-
-    libraryAct = QAction('&Library', w)
-    libraryAct.triggered.connect(showLibrary)
-    menuBar.addAction(libraryAct)
-
-    # Exit app
-    exitAct = QAction('&Exit', w)
-    exitAct.setShortcut('Ctrl+Q')
-    exitAct.setStatusTip('Exit')
-    exitAct.triggered.connect(app.quit)
-    homeMenu.addAction(exitAct)
-    
-    helpMenu = menuBar.addMenu("&Help")  
-    
-    w.show()
+    w = MainWindow()
     sys.exit(app.exec_())
 
+
 if __name__ == '__main__':
     main()
\ No newline at end of file