Error is thrown when a cell is selected in GridHeatmap #1632
Description
Describe the bug
When selection is enabled (interactions={"click": "select"}) in the GridHeatmap and a cell is clicked below exception is thrown:
File ~/miniconda3/envs/mlviz/lib/python3.9/site-packages/bqplot/traits.py:177, in array_to_json(ar, obj, force_contiguous)
175 return [array_to_json(np.array(row), obj, force_contiguous) for row in ar]
176 else:
--> 177 raise ValueError("Unsupported dtype object")
179 if ar.dtype.kind in ['S', 'U']: # strings to as plain json
180 return ar.tolist()
ValueError: Unsupported dtype objectTo Reproduce
Code to reproduce the error:
fig = plt.figure(padding_y=0)
grid_map = plt.gridheatmap(
np.random.rand(4, 4),
interactions={"click": "select"}
)
figWhen you click on any cell to select it, the above exception is thrown
Expected behavior
grid_map.selected should be updated with the [row_id, col_id]
Screenshots
If applicable, add screenshots to help explain your problem.
Additional context
bqplot >= 0.12.36
ipywidgets >= 7.7.0