fix: return type of QFileDialog.getSaveFileName() changed

gui/qt/main_window.py

@@ -399,7 +399,7 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, PrintError):
     def backup_wallet(self):
         path = self.wallet.storage.path
         wallet_folder = os.path.dirname(path)
-        filename = QFileDialog.getSaveFileName(self, _('Enter a filename for the copy of your wallet'), wallet_folder)
+        filename, __ = QFileDialog.getSaveFileName(self, _('Enter a filename for the copy of your wallet'), wallet_folder)
         if not filename:
             return
 
@@ -592,7 +592,7 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, PrintError):
     def getSaveFileName(self, title, filename, filter = ""):
         directory = self.config.get('io_dir', os.path.expanduser('~'))
         path = os.path.join( directory, filename )
-        fileName = QFileDialog.getSaveFileName(self, title, path, filter)
+        fileName, __ = QFileDialog.getSaveFileName(self, title, path, filter)
         if fileName and directory != os.path.dirname(fileName):
             self.config.set_key('io_dir', os.path.dirname(fileName), True)
         return fileName

gui/qt/util.py

@@ -351,7 +351,7 @@ def filename_field(parent, config, defaultname, select_msg):
     def func():
         text = filename_e.text()
         _filter = "*.csv" if text.endswith(".csv") else "*.json" if text.endswith(".json") else None
-        p = QFileDialog.getSaveFileName(None, select_msg, text, _filter)
+        p, __ = QFileDialog.getSaveFileName(None, select_msg, text, _filter)
         if p:
             filename_e.setText(p)