Use package structure

main.py

@@ -0,0 +1,11 @@
+# This Python file uses the following encoding: utf-8
+
+from PySide6.QtWidgets import QApplication
+from openfm_qt import MainWindow
+import sys
+
+if __name__ == "__main__":
+    app = QApplication(sys.argv)
+    widget = MainWindow()
+    widget.show()
+    sys.exit(app.exec())

openfm-qt.pyproject

@@ -1,3 +1,3 @@
 {
-    "files": ["mainwindow.py","form.ui"]
+    "files": ["form.ui","openfm_qt/mainwindow.py","openfm_qt/__init__.py","main.py"]
 }

openfm_qt/__init__.py

@@ -0,0 +1,6 @@
+# This Python file uses the following encoding: utf-8
+
+API_URL = "https://open.fm/radio/api/v2/ofm/stations_slug.json"
+DEFAULT_VOLUME = 70
+
+from .mainwindow import MainWindow

openfm_qt/mainwindow.py

@@ -1,8 +1,7 @@
 # This Python file uses the following encoding: utf-8
-import sys
 
 from PySide6.QtCore import QUrl
-from PySide6.QtWidgets import QApplication, QMainWindow, QMessageBox, QStyle
+from PySide6.QtWidgets import QMainWindow, QMessageBox, QStyle
 from PySide6.QtMultimedia import QMediaPlayer, QAudioOutput
 
 # Important:
@@ -12,9 +11,7 @@ from PySide6.QtMultimedia import QMediaPlayer, QAudioOutput
 from ui_form import Ui_MainWindow
 import json
 import requests
-
+from . import API_URL, DEFAULT_VOLUME
-API_URL = "https://open.fm/radio/api/v2/ofm/stations_slug.json"
-DEFAULT_VOLUME = 70
 
 
 class MainWindow(QMainWindow):
@@ -128,10 +125,3 @@ class MainWindow(QMainWindow):
             pass
 
         self.ui.playbackToolButton.setIcon(icon)
-
-
-if __name__ == "__main__":
-    app = QApplication(sys.argv)
-    widget = MainWindow()
-    widget.show()
-    sys.exit(app.exec())