Update selectively instead of using _update_ticks.

efiring · efiring · commit b217c3fd5634 · 2020-04-30T11:47:15.000-10:00
diff --git a/lib/matplotlib/axis.py b/lib/matplotlib/axis.py
@@ -1640,16 +1640,19 @@ def set_ticklabels(self, ticklabels, *, minor=False, **kwargs):
             formatter = mticker.FuncFormatter(func)
         else:
             formatter = mticker.FixedFormatter(ticklabels)
+
         if minor:
             self.set_minor_formatter(formatter)
-            ticks = self.get_minor_ticks()
+            locs = self.get_minorticklocs()
+            ticks = self.get_minor_ticks(len(locs))
         else:
             self.set_major_formatter(formatter)
-            ticks = self.get_major_ticks()
+            locs = self.get_majorticklocs()
+            ticks = self.get_major_ticks(len(locs))
 
-        self._update_ticks()
         ret = []
-        for pos, tick in enumerate(ticks):
+        for pos, (loc, tick) in enumerate(zip(locs, ticks)):
+            tick.update_position(loc)
             tick_label = formatter(tick._loc, pos)
             # deal with label1
             tick.label1.set_text(tick_label)
