feat: set focus to book ident on change

src/ui/main_ui.py

@@ -276,7 +276,7 @@ class MainUI(QtWidgets.QMainWindow, Ui_MainWindow):
             "Bitte erst in den Ausleihmodus wechseln"
         )
         self.input_userno.setPlaceholderText("Bitte erst in den Ausleihmodus wechseln")
-
+        self.input_file_ident.setFocus()
     def showUser(self):
         if self.activeUser is None:
             # create warning dialog
@@ -395,7 +395,7 @@ class MainUI(QtWidgets.QMainWindow, Ui_MainWindow):
                 self.input_file_ident.clear()
                 return
         else:
-            if not " " in value:
+            if " " not in value:
                 # create warning dialog
                 log.info("Invalid Input")
                 dialog = QtWidgets.QMessageBox()
@@ -421,7 +421,7 @@ class MainUI(QtWidgets.QMainWindow, Ui_MainWindow):
         log.debug(f"Book ID: {book_id}, User ID: {user_id}", media=media)
         if not book_id:
             log.info("Book not found, searching catalogue")
-            if config.catalogue == True:
+            if config.catalogue:
                 media = cat.get_book(identifier)
                 if not media:
                     self.setStatusTipMessage("Buch nicht gefunden")
@@ -572,7 +572,7 @@ def exit_handler():
         "Exiting, creating backup, renaming inactive users, creating report if day matches"
     )
     restore_config()
-    app = QtWidgets.QApplication(sys.argv)
+    QtWidgets.QApplication(sys.argv)
     # print(backup.backup)
     # generate report if monday
     if datetime.datetime.now().weekday() == config.report.report_day:
@@ -582,7 +582,7 @@ def exit_handler():
     if config.database.do_backup:
         state = backup.createBackup()
         # create dialog to show state
-        if state == True:
+        if state:
             return
         else:
             dialog = QtWidgets.QMessageBox()
@@ -630,7 +630,7 @@ def launch(*argv):
 
     # Load base QT translations from the normal place
     app = QtWidgets.QApplication([])
-    main_ui = MainUI()
+    MainUI()
     # translate ui to system language
     if SYSTEM_LANGUAGE:
         translator = QtCore.QTranslator()