Apply pyupgrade changes

hscommon/gui/column.py

@@ -216,7 +216,7 @@ class Columns(GUIObject):
                 self.view.restore_columns()
             return
         for col in self.column_list:
-            pref_name = "{}.Columns.{}".format(self.savename, col.name)
+            pref_name = f"{self.savename}.Columns.{col.name}"
             coldata = self.prefaccess.get_default(pref_name, fallback_value={})
             if "index" in coldata:
                 col.ordered_index = coldata["index"]
@@ -231,7 +231,7 @@ class Columns(GUIObject):
         if not (self.prefaccess and self.savename and self.coldata):
             return
         for col in self.column_list:
-            pref_name = "{}.Columns.{}".format(self.savename, col.name)
+            pref_name = f"{self.savename}.Columns.{col.name}"
             coldata = {"index": col.ordered_index, "width": col.width}
             if col.optional:
                 coldata["visible"] = col.visible

hscommon/gui/table.py

@@ -451,7 +451,7 @@ class Row:
     """
 
     def __init__(self, table):
-        super(Row, self).__init__()
+        super().__init__()
         self.table = table
 
     def _edit(self):

hscommon/gui/tree.py

@@ -77,8 +77,7 @@ class Node(MutableSequence):
         if include_self and predicate(self):
             yield self
         for child in self:
-            for found in child.findall(predicate, include_self=True):
-                yield found
+            yield from child.findall(predicate, include_self=True)
 
     def get_node(self, index_path):
         """Returns the node at ``index_path``.