Cleaning threads on close

src/cutecoin/gui/currency_tab.py

@@ -270,6 +270,7 @@ QMessageBox.Ok | QMessageBox.Cancel)
                                          .format(block_number))
 
     def closeEvent(self, event):
+        super().closeEvent(event)
         self.bc_watcher.deleteLater()
         self.watcher_thread.deleteLater()
 

src/cutecoin/gui/network_tab.py

@@ -38,4 +38,8 @@ class NetworkTabWidget(QWidget, Ui_NetworkTabWidget):
     def refresh_nodes(self):
         self.table_network.model().sourceModel().modelReset.emit()
 
+    def closeEvent(self, event):
+        super().closeEvent(event)
+        self.network_watcher.deleteLater()
+        self.watcher_thread.deleteLater()