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Remove usage of deprecated Pandas parameter convert_dtypes #3191

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Sep 15, 2023
Merged

Remove usage of deprecated Pandas parameter convert_dtypes #3191

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2 changes: 1 addition & 1 deletion altair/utils/core.py
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Original file line number Diff line number Diff line change
Expand Up @@ -407,7 +407,7 @@ def to_list_if_array(val):
elif dtype == object:
# Convert numpy arrays saved as objects to lists
# Arrays are not JSON serializable
col = df[col_name].apply(to_list_if_array, convert_dtype=False)
col = df[col_name].astype(object).apply(to_list_if_array)
df[col_name] = col.where(col.notnull(), None)
return df

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