Merge pull request #1611 from segasai/master

change handling of legend labels which are None
matplotlib · Jan 16, 2013 · a9dcdfd · a9dcdfd
2 parents 5da2d9d + 9c7ff84
commit a9dcdfd
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Showing 2 changed files with 8 additions and 2 deletions.
diff --git a/lib/matplotlib/artist.py b/lib/matplotlib/artist.py
@@ -686,7 +686,10 @@ def set_label(self, s):
 
         ACCEPTS: string or anything printable with '%s' conversion.
         """
-        self._label = '%s' % (s, )
+        if s is not None:
+            self._label = '%s' % (s, )
+        else:
+            self._label = None
         self.pchanged()
 
     def get_zorder(self):

diff --git a/lib/matplotlib/container.py b/lib/matplotlib/container.py
@@ -44,7 +44,10 @@ def set_label(self, s):
 
         ACCEPTS: string or anything printable with '%s' conversion.
         """
-        self._label = '%s' % (s, )
+        if s is not None:
+            self._label = '%s' % (s, )
+        else:
+            self._label = None
         self.pchanged()
 
     def add_callback(self, func):