MNT: Remove unused eventson context from artist property update

timhoffm · timhoffm · commit 87ac5e9de311 · 2026-02-02T23:51:25.000+01:00
The attribute `eventson` was introduced in 79aa291. While it was set on and off in various places, there has never been any code that made logic depend on its state. The attribute itself was removed in #18910, but its toggling through the context manager was overlooked there. Note: There is another `eventson` in widgets.py, which is completely independent on this here, because widgets are not Artists.
diff --git a/lib/matplotlib/artist.py b/lib/matplotlib/artist.py
@@ -1228,19 +1228,18 @@ def _update_props(self, props, errfmt):
         property name for "{prop_name}".
         """
         ret = []
-        with cbook._setattr_cm(self, eventson=False):
-            for k, v in props.items():
-                # Allow attributes we want to be able to update through
-                # art.update, art.set, setp.
-                if k == "axes":
-                    ret.append(setattr(self, k, v))
-                else:
-                    func = getattr(self, f"set_{k}", None)
-                    if not callable(func):
-                        raise AttributeError(
-                            errfmt.format(cls=type(self), prop_name=k),
-                            name=k)
-                    ret.append(func(v))
+        for k, v in props.items():
+            # Allow attributes we want to be able to update through
+            # art.update, art.set, setp.
+            if k == "axes":
+                ret.append(setattr(self, k, v))
+            else:
+                func = getattr(self, f"set_{k}", None)
+                if not callable(func):
+                    raise AttributeError(
+                        errfmt.format(cls=type(self), prop_name=k),
+                        name=k)
+                ret.append(func(v))
         if ret:
             self.pchanged()
             self.stale = True
