Merge pull request #2399 from mattijn/pandas-nullable-float-data

support serializing nullable float data
vega · Nov 12, 2021 · 03be44a · 03be44a
2 parents ea35b61 + 26a00b4
commit 03be44a
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/altair/utils/core.py b/altair/utils/core.py
@@ -363,7 +363,9 @@ def to_list_if_array(val):
             "UInt16",
             "UInt32",
             "UInt64",
-        }:  # nullable integer datatypes (since 24.0)
+            "Float32",
+            "Float64",
+        }:  # nullable integer datatypes (since 24.0) and nullable float datatypes (since 1.2.0)
             # https://pandas.pydata.org/pandas-docs/version/0.25/whatsnew/v0.24.0.html#optional-integer-na-support
             col = df[col_name].astype(object)
             df[col_name] = col.where(col.notnull(), None)