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provide comment as to why Live needs lock in process_renderables

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Nathan Page 2020-10-24 16:23:24 -04:00
parent 119211e37f
commit ae15cff503
1 changed files with 2 additions and 1 deletions
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rich/live.py
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@ -156,7 +156,8 @@ class Live(JupyterMixin, RenderHook):
) -> List[ConsoleRenderable]: ) -> List[ConsoleRenderable]:
"""Process renderables to restore cursor and display progress.""" """Process renderables to restore cursor and display progress."""
if self.console.is_terminal: if self.console.is_terminal:
with self._lock: # need to ensure data is not updating in between # lock needs acquiring as user can modify live_render renerable at any time unlike in Progress.
with self._lock:
renderables = [ renderables = [
self._live_render.position_cursor(), self._live_render.position_cursor(),
*renderables, *renderables,