Close #184: only call _repr_mimebundle_ if it exists and is callable

posit-dev · Jan 30, 2025 · 770dc94 · 770dc94
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [UNRELEASED]
 
+* Fixes 'AttributeError: object has no attribute "_repr_mimebundle_"'. (#184)
 
 ## [0.5.0] - 2025-01-29
 

diff --git a/shinywidgets/_shinywidgets.py b/shinywidgets/_shinywidgets.py
@@ -125,7 +125,8 @@ def _open_shiny_comm():
         # Call _repr_mimebundle_() before get_state() since it may modify the widget
         # in an important way (unfortunately, it does for plotly)
         # # https://github.com/plotly/plotly.py/blob/0089f32/packages/python/plotly/plotly/basewidget.py#L734-L738
-        w._repr_mimebundle_()
+        if hasattr(w, "_repr_mimebundle_") and callable(w._repr_mimebundle_):
+            w._repr_mimebundle_()
 
         # Now, get the state
         state, buffer_paths, buffers = _remove_buffers(w.get_state())
Original file line number	Diff line number	Diff line change
Expand Up		@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0

		## [UNRELEASED]

		* Fixes 'AttributeError: object has no attribute "_repr_mimebundle_"'. (#184)

		## [0.5.0] - 2025-01-29

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