[Checkins] SVN: Sandbox/faassen/iface/src/iface/mapping. We also need to implement __eq__ to support the case where

[Martijn Faassen]

Log message for revision 107754:
  We also need to implement __eq__ to support the case where
  we recreate the same map key.
  

Changed:
  U   Sandbox/faassen/iface/src/iface/mapping.py
  U   Sandbox/faassen/iface/src/iface/mapping.txt

-=-
Modified: Sandbox/faassen/iface/src/iface/mapping.py
===================================================================
--- Sandbox/faassen/iface/src/iface/mapping.py	2010-01-06 21:38:49 UTC (rev 107753)
+++ Sandbox/faassen/iface/src/iface/mapping.py	2010-01-06 21:44:23 UTC (rev 107754)
@@ -17,6 +17,9 @@
     def __hash__(self):
         return hash(self.key)
 
+    def __eq__(self, other):
+        return self.key == other.key
+
     def __repr__(self):
         return "<MapKey: %r>" % self.key
 

Modified: Sandbox/faassen/iface/src/iface/mapping.txt
===================================================================
--- Sandbox/faassen/iface/src/iface/mapping.txt	2010-01-06 21:38:49 UTC (rev 107753)
+++ Sandbox/faassen/iface/src/iface/mapping.txt	2010-01-06 21:44:23 UTC (rev 107754)
@@ -34,12 +34,22 @@
   >>> map[a] = u'Value for A'
   >>> map[a]
   u'Value for A'
+
+If we recreate the MapKey (with the same parents, in this case none),
+we can still look up the same value::
+
+  >>> a_new = MapKey('a')
+  >>> map[a_new]
+  u'Value for A'
+
+Once we delete the entry we cannot look it up anymore::
+
   >>> del map[a]
   >>> map[a]
   Traceback (most recent call last):
     ...
   KeyError: <MapKey: 'a'>
- 
+  
 We now register something for ``b``::
 
   >>> map[b] = u'Value for B'