matplotlib · oscargus · Feb 1, 2024 · Feb 1, 2024
diff --git a/lib/matplotlib/figure.py b/lib/matplotlib/figure.py
@@ -287,8 +287,6 @@ def _suplabels(self, t, info, **kwargs):
            Additional kwargs are `matplotlib.text.Text` properties.
        """

-        suplab = getattr(self, info['name'])
-
        x = kwargs.pop('x', None)
        y = kwargs.pop('y', None)
        if info['name'] in ['_supxlabel', '_suptitle']:
@@ -300,29 +298,24 @@ def _suplabels(self, t, info, **kwargs):
        if y is None:
            y = info['y0']

-        if 'horizontalalignment' not in kwargs and 'ha' not in kwargs:
-            kwargs['horizontalalignment'] = info['ha']
-        if 'verticalalignment' not in kwargs and 'va' not in kwargs:
-            kwargs['verticalalignment'] = info['va']
-        if 'rotation' not in kwargs:
-            kwargs['rotation'] = info['rotation']
+        kwargs = cbook.normalize_kwargs(kwargs, Text)
+        kwargs.setdefault('horizontalalignment', info['ha'])
+        kwargs.setdefault('verticalalignment', info['va'])
+        kwargs.setdefault('rotation', info['rotation'])

        if 'fontproperties' not in kwargs:
-            if 'fontsize' not in kwargs and 'size' not in kwargs:
-                kwargs['size'] = mpl.rcParams[info['size']]
-            if 'fontweight' not in kwargs and 'weight' not in kwargs:
-                kwargs['weight'] = mpl.rcParams[info['weight']]
+            kwargs.setdefault('fontsize', mpl.rcParams[info['size']])
+            kwargs.setdefault('fontweight', mpl.rcParams[info['weight']])

-        sup = self.text(x, y, t, **kwargs)
+        suplab = getattr(self, info['name'])
        if suplab is not None:
            suplab.set_text(t)
            suplab.set_position((x, y))
-            suplab.update_from(sup)
-            sup.remove()
+            suplab.set(**kwargs)
        else:
-            suplab = sup
+            suplab = self.text(x, y, t, **kwargs)
+            setattr(self, info['name'], suplab)
        suplab._autopos = autopos
-        setattr(self, info['name'], suplab)
        self.stale = True
        return suplab


diff --git a/lib/matplotlib/text.py b/lib/matplotlib/text.py
@@ -80,17 +80,17 @@ def _get_text_metrics_with_cache_impl(
 @_docstring.interpd
 @_api.define_aliases({
    "color": ["c"],
-    "fontfamily": ["family"],
    "fontproperties": ["font", "font_properties"],
-    "horizontalalignment": ["ha"],
-    "multialignment": ["ma"],
+    "fontfamily": ["family"],
    "fontname": ["name"],
    "fontsize": ["size"],
    "fontstretch": ["stretch"],
    "fontstyle": ["style"],
    "fontvariant": ["variant"],
-    "verticalalignment": ["va"],
    "fontweight": ["weight"],
+    "horizontalalignment": ["ha"],
+    "verticalalignment": ["va"],
+    "multialignment": ["ma"],
 })
 class Text(Artist):
    """Handle storing and drawing of text in window or data coordinates."""