exit track thread

CHANGELOG.md

@@ -13,6 +13,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Fixed `Table` rendering of box elements so "footer" elements truly appear at bottom of table, "mid" elements in main table body.
 - Fixed styles in Panel when Text objects are used for title https://github.com/Textualize/rich/pull/3401
 - Fix pretty repr for `collections.deque` https://github.com/Textualize/rich/pull/2864
+- Thread used in progress.track will exit if an exception occurs in a generator https://github.com/Textualize/rich/pull/3402
+- Progress track thread is now a daemon thread https://github.com/Textualize/rich/pull/3402
 
 ### Changed
 

rich/progress.py

@@ -70,15 +70,15 @@ def __init__(self, progress: "Progress", task_id: "TaskID", update_period: float
         self.done = Event()
 
         self.completed = 0
-        super().__init__()
+        super().__init__(daemon=True)
 
     def run(self) -> None:
         task_id = self.task_id
         advance = self.progress.advance
         update_period = self.update_period
         last_completed = 0
         wait = self.done.wait
-        while not wait(update_period):
+        while not wait(update_period) and self.progress.live.is_started:
             completed = self.completed
             if last_completed != completed:
                 advance(task_id, completed - last_completed)

tests/test_progress.py

@@ -646,7 +646,7 @@ def test_wrap_file_task_total() -> None:
         os.remove(filename)
 
 
-def test_task_progress_column_speed():
+def test_task_progress_column_speed() -> None:
     speed_text = TaskProgressColumn.render_speed(None)
     assert speed_text.plain == ""