mark PollingListWalker as deprecated, it needs to go away soon.

2 files changed, 9 insertions, 1 deletions

diff --git a/CHANGELOG b/CHANGELOG
index 4ed3e6a..8b26031 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -15,6 +15,8 @@ Urwid 1.0.1
     * Disable curses_display external event loop support, screen resizing
       and gpm events are not properly supported
 
+    * Mark PollingListWalker as deprecated
+
 
 Urwid 1.0.0
 
diff --git a/urwid/listbox.py b/urwid/listbox.py
index cbe09c4..8bc92d4 100644
--- a/urwid/listbox.py
+++ b/urwid/listbox.py
@@ -40,13 +40,19 @@ class ListWalker(object):
 
     def _modified(self):
         signals.emit_signal(self, "modified")
-    
+
 
 class PollingListWalker(object):  # NOT ListWalker subclass
     def __init__(self, contents):
         """
         contents -- list to poll for changes
+
+        This class is deprecated.  Use SimpleListWalker instead.
         """
+        import warnings
+        warnings.warn("PollingListWalker is deprecated, "
+            "use SimpleListWalker instead.", DeprecationWarning)
+
         self.contents = contents
         if not type(contents) == list and not hasattr( 
             contents, '__getitem__' ):