tree: Start expanded with Textual 0.73+

.bumpversion.cfg

@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.13.3
+current_version = 1.13.4
 commit = True
 message = 
 	Prepare for {new_version} release

NEWS.rst

@@ -8,6 +8,15 @@ Changelog
 
 .. towncrier release notes start
 
+memray 1.13.4 (2024-07-18)
+--------------------------
+
+Bug Fixes
+~~~~~~~~~
+
+- A backwards-incompatible change released in Textual 0.73 caused the ``memray tree`` reporter to start with no nodes expanded. This release adds a workaround to restore the old behavior of expanding the first child of each node. (#648)
+
+
 memray 1.13.3 (2024-07-02)
 --------------------------
 

src/memray/_version.py

@@ -1 +1 @@
-__version__ = "1.13.3"
+__version__ = "1.13.4"

src/memray/reporters/tree.py

@@ -277,7 +277,9 @@ def repopulate_tree(self, tree: FrameTree) -> None:
         self.add_children(tree.root, self.data.children.values())
         self.add_elided_locations_node(tree.root)
         tree.root.expand()
-        tree.select_node(tree.root)
+        # From Textual 0.73 on, Tree.select_node toggles the node's expanded
+        # state. The new Tree.move_cursor method selects without expanding.
+        getattr(tree, "move_cursor", tree.select_node)(tree.root)
         self.expand_first_child(tree.root)
 
     def action_expand_linear_group(self) -> None: