fix stubs

saranti · saranti · commit 72fd59d082e3 · 2024-04-03T20:08:43.000+11:00
diff --git a/lib/matplotlib/axes/_axes.pyi b/lib/matplotlib/axes/_axes.pyi
@@ -748,7 +748,7 @@ class Axes(_AxesBase):
         | Callable[[GaussianKDE], float]
         | None = ...,
         side: Literal["both", "low", "high"] = ...,
-        orientation: Literal["vertical", "horizontal"] = ...,
+        orientation: Literal["vertical", "horizontal"] | None = ...,
         *,
         data=...,
     ) -> dict[str, Collection]: ...
@@ -762,7 +762,7 @@ class Axes(_AxesBase):
         showextrema: bool = ...,
         showmedians: bool = ...,
         side: Literal["both", "low", "high"] = ...,
-        orientation: Literal["vertical", "horizontal"] = ...,
+        orientation: Literal["vertical", "horizontal"] | None = ...,
     ) -> dict[str, Collection]: ...
 
     table = mtable.table
diff --git a/lib/matplotlib/pyplot.py b/lib/matplotlib/pyplot.py
@@ -4154,7 +4154,7 @@ def violinplot(
     | Callable[[GaussianKDE], float]
     | None = None,
     side: Literal["both", "low", "high"] = "both",
-    orientation: Literal["vertical", "horizontal"] = "vertical",
+    orientation: Literal["vertical", "horizontal"] | None = None,
     *,
     data=None,
 ) -> dict[str, Collection]:
