def load_installed_version(self):
        installed_packages = get_installed_pypackages()
        if self.package in installed_packages:
            self.version = "=={}".format(
                installed_packages[self.package].version)
def on_select_row(self, treeview=None):
        """When a row is selected, displays the corresponding editing panel

        @var treeview: not used
        """
        self.dialog.on_backend_selected(self.get_selected_backend_id())