matplotlib
diff --git a/‎galleries/users_explain/axes/axes_units.py
Copy file name to clipboardExpand all lines: galleries/users_explain/axes/axes_units.py
+3-3Lines changed: 3 additions & 3 deletions b/‎galleries/users_explain/axes/axes_units.py
Copy file name to clipboardExpand all lines: galleries/users_explain/axes/axes_units.py
+3-3Lines changed: 3 additions & 3 deletions
diff --git a/‎lib/matplotlib/category.py
Copy file name to clipboardExpand all lines: lib/matplotlib/category.py
+5-4Lines changed: 5 additions & 4 deletions b/‎lib/matplotlib/category.py
Copy file name to clipboardExpand all lines: lib/matplotlib/category.py
+5-4Lines changed: 5 additions & 4 deletions
diff --git a/‎lib/matplotlib/tests/test_category.py
Copy file name to clipboardExpand all lines: lib/matplotlib/tests/test_category.py
+8Lines changed: 8 additions & 0 deletions b/‎lib/matplotlib/tests/test_category.py
Copy file name to clipboardExpand all lines: lib/matplotlib/tests/test_category.py
+8Lines changed: 8 additions & 0 deletions
@@ -236,7 +236,7 @@
 x = np.arange(100)
 ax = axs[0]
 ax.plot(x, x)
-label = f'Converter: {ax.xaxis.converter}\n '
+label = f'Converter: {ax.xaxis.get_converter()}\n '
 label += f'Locator: {ax.xaxis.get_major_locator()}\n'
 label += f'Formatter: {ax.xaxis.get_major_formatter()}\n'
 ax.set_xlabel(label)
@@ -245,7 +245,7 @@
 time = np.arange('1980-01-01', '1980-06-25', dtype='datetime64[D]')
 x = np.arange(len(time))
 ax.plot(time, x)
-label = f'Converter: {ax.xaxis.converter}\n '
+label = f'Converter: {ax.xaxis.get_converter()}\n '
 label += f'Locator: {ax.xaxis.get_major_locator()}\n'
 label += f'Formatter: {ax.xaxis.get_major_formatter()}\n'
 ax.set_xlabel(label)
@@ -255,7 +255,7 @@
 names = list(data.keys())
 values = list(data.values())
 ax.plot(names, values)
-label = f'Converter: {ax.xaxis.converter}\n '
+label = f'Converter: {ax.xaxis.get_converter()}\n '
 label += f'Locator: {ax.xaxis.get_major_locator()}\n'
 label += f'Formatter: {ax.xaxis.get_major_formatter()}\n'
 ax.set_xlabel(label)
 
@@ -227,7 +227,8 @@ def update(self, data):
 
 
 # Register the converter with Matplotlib's unit framework
-units.registry[str] = StrCategoryConverter()
-units.registry[np.str_] = StrCategoryConverter()
-units.registry[bytes] = StrCategoryConverter()
-units.registry[np.bytes_] = StrCategoryConverter()
+# Intentionally set to a single instance
+units.registry[str] = \
+    units.registry[np.str_] = \
+    units.registry[bytes] = \
+    units.registry[np.bytes_] = StrCategoryConverter()
@@ -246,6 +246,14 @@ def test_update_plot(self, plotter):
         axis_test(ax.xaxis, ['a', 'b', 'd', 'c'])
         axis_test(ax.yaxis, ['e', 'g', 'f', 'a', 'b', 'd'])
 
+    def test_update_plot_heterogenous_plotter(self):
+        ax = plt.figure().subplots()
+        ax.scatter(['a', 'b'], ['e', 'g'])
+        ax.plot(['a', 'b', 'd'], ['f', 'a', 'b'])
+        ax.bar(['b', 'c', 'd'], ['g', 'e', 'd'])
+        axis_test(ax.xaxis, ['a', 'b', 'd', 'c'])
+        axis_test(ax.yaxis, ['e', 'g', 'f', 'a', 'b', 'd'])
+
     failing_test_cases = [("mixed", ['A', 3.14]),
                           ("number integer", ['1', 1]),
                           ("string integer", ['42', 42]),