wip

Author: MarcoGorelli

pandas/plotting/_matplotlib/core.py

@@ -1187,7 +1187,8 @@ def _make_plot(self):
                 is_errorbar=is_errorbar,
                 **kwds,
             )
-            self._add_legend_handle(newlines[0], label, index=i)
+            if label is not None:
+                self._add_legend_handle(newlines[0], label, index=i)
 
             if self._is_ts_plot():
 
@@ -1518,7 +1519,8 @@ def _make_plot(self):
                     log=self.log,
                     **kwds,
                 )
-            self._add_legend_handle(rect, label, index=i)
+            if label is not None:
+                self._add_legend_handle(rect, label, index=i)
 
     def _post_plot_logic(self, ax: Axes, data):
         if self.use_index: