Update src/textual/widgets/_tree.py

Co-authored-by: Darren Burns <darrenburns@users.noreply.github.com>
Textualize · Sep 25, 2024 · 514e12b · 514e12b
1 parent a8ad566
commit 514e12b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/textual/widgets/_tree.py b/src/textual/widgets/_tree.py
@@ -945,7 +945,7 @@ def move_cursor_to_line(self, line: int, animate=False) -> None:
         try:
             node = self._tree_lines[line].node
         except IndexError:
-            raise IndexError("No line no. {line} in the tree")
+            raise IndexError(f"No line no. {line} in the tree")
         self.move_cursor(node, animate=animate)
 
     def select_node(self, node: TreeNode[TreeDataType] | None) -> None: