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chore(render.display): Improve error message #1020

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merged 2 commits into from
Jan 19, 2024
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chore(render.display): Improve error message #1020

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chore(render.display): Improve error message
gadenbuie Jan 17, 2024
1ffa388
Update shiny/render/_display.py
schloerke Jan 19, 2024
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2 changes: 1 addition & 1 deletion shiny/render/_display.py
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Original file line number Diff line number Diff line change
Expand Up @@ -94,7 +94,7 @@ async def render(self) -> JsonifiableDict | None:
ret = sync_value_fn()
if ret is not None:
raise RuntimeError(
"@render.display functions should not return values. (`None` is allowed)."
"@render.display functions should not return values. Instead, the function body should include Shiny Express code that will be dynamically rendered in the app. (`None` is a valid return value.)"
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)
finally:
sys.displayhook = orig_displayhook
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