Modify axis.py/set_ticklabels to fix Issue 2246; add test and compari…

…sion image

lib/matplotlib/axis.py

@@ -1521,8 +1521,20 @@ def set_ticklabels(self, ticklabels, *args, **kwargs):
         tick locations, regardless of the state of label1On and
         label2On.
 
-        ACCEPTS: sequence of strings
-        """
+        ACCEPTS: sequence of strings or Text objects
+        """
+        get_labels = []
+        for t in ticklabels:
+            # try calling get_text() to check whether it is Text object
+            # if it is Text, get label content
+            try:
+                get_labels.append(t.get_text())
+            # otherwise add the label to the list directly
+            except AttributeError: 
+                get_labels.append(t)
+        # replace the ticklabels list with the processed one
+        ticklabels = get_labels
+
         minor = kwargs.pop('minor', False)
         if minor:
             self.set_minor_formatter(mticker.FixedFormatter(ticklabels))

lib/matplotlib/tests/test_axes.py

@@ -12,6 +12,7 @@
 
 import numpy as np
 from numpy import ma
+from numpy import arange
 
 import matplotlib
 from matplotlib.testing.decorators import image_comparison, cleanup
@@ -3476,6 +3477,28 @@ def test_pie_frame_grid():
     plt.axis('equal')
 
 
+@image_comparison(baseline_images=['set_get_ticklabels'], extensions=['png'])
+def test_set_get_ticklabels():
+    # test issue 2246
+    fig, ax = plt.subplots(2)
+    ha = ['normal', 'set_x/yticklabels']
+
+    ax[0].plot(arange(10))
+    ax[0].set_title(ha[0])
+
+    ax[1].plot(arange(10))
+    ax[1].set_title(ha[1])
+
+    # set ticklabel to 1 plot in normal way
+    ax[0].set_xticklabels(('a', 'b', 'c', 'd'))
+    ax[0].set_yticklabels(('11', '12', '13', '14'))
+
+    # set ticklabel to the other plot, expect the 2 plots have same label setting
+    # pass get_ticklabels return value as ticklabels argument    
+    ax[1].set_xticklabels(ax[0].get_xticklabels() ) 
+    ax[1].set_yticklabels(ax[0].get_yticklabels() )
+
+
 @cleanup
 def test_margins():
     # test all ways margins can be called