First commit. Just a splitter+tabWidget

main.py

@@ -0,0 +1,21 @@
+import sys
+import os
+from PyQt5.QtWidgets import (QMainWindow,
+                             QApplication,)
+from PyQt5.QtGui import QPixmap
+from PyQt5 import uic
+
+qt_creator_file = "main_window.ui"
+
+Ui_MainWindow, _ = uic.loadUiType(qt_creator_file)
+
+class MyApp(QMainWindow, Ui_MainWindow):
+    def __init__(self):
+        super().__init__()
+        self.setupUi(self)
+
+if __name__ == '__main__':
+    my_app = QApplication(sys.argv)
+    w = MyApp()
+    w.show()
+    sys.exit(my_app.exec_())