Added comments in main.py; the Logger utility is used now

main.py

@@ -20,22 +20,26 @@ import sys
 from PySide6.QtWidgets import QApplication
 from PySide6.QtCore import QFile, QIODevice
 from PySide6.QtUiTools import QUiLoader
+from utils import Logger
 
 
 if __name__ == "__main__":
+    # needed variables
     app = QApplication(sys.argv)
-
+    logger = Logger()
     ui_file_name = "main.ui"
+
+    # create the window
     ui_file = QFile(ui_file_name)
     if not ui_file.open(QIODevice.ReadOnly):
-        print(f"Cannot open {ui_file_name}: {ui_file.errorString()}")
+        logger.log(f"Cannot open {ui_file_name}: {ui_file.errorString()}", 1)
         sys.exit(-1)
-    loader = QUiLoader()
-    window = loader.load(ui_file)
+    window = QUiLoader().load(ui_file)
     ui_file.close()
     if not window:
         print(loader.errorString())
         sys.exit(-1)
     window.show()
 
+    # run as long as the app is executing
     sys.exit(app.exec())