Main starts either GUI or TUI. UI split from optima35.

gui.py

@@ -2,7 +2,7 @@ import sys
 import os
 from datetime import datetime
 
-from optima35 import OPTIMA35
+from optima.optima35 import OPTIMA35
 from utils.utility import Utilities
 from ui.main_window import Ui_MainWindow
 from ui.exif_handler_window import ExifEditor
@@ -37,6 +37,9 @@ class Optima35GUI(QMainWindow, Ui_MainWindow):
         self.default_ui_layout()
         self.define_gui_interaction()
 
+        if exif_file == "config/exif_example.yaml":
+            self.change_statusbar("Using example exif...", 10000)
+
     def default_ui_layout(self):
         self.ui.png_quality_spinBox.setVisible(False)
 
@@ -254,11 +257,19 @@ class Optima35GUI(QMainWindow, Ui_MainWindow):
         python = sys.executable  # Path to the Python interpreter
         os.execv(python, [python] + sys.argv)
 
-def main(exif_file="local_files/exif.yaml"):
+def main(exif_file):
     app = QtWidgets.QApplication(sys.argv)
     window = Optima35GUI(exif_file=exif_file)
     window.show()
     app.exec()
 
 if __name__ == "__main__":
-    main()
+    if os.path.isfile("config/exif.yaml"):
+        exif_file = "config/exif.yaml"
+        print("Fall back to exif example file...")
+    elif os.path.isfile("config/exif_example.yaml"):
+        exif_file = "config/exif_example.yaml"
+    else:
+        print("Exif file missing, please ensure an exif file exist in config folder (exif.yaml, or exif_example_yaml)\nExiting...")
+        exit()
+    main(exif_file)