removed trailing whitespace

src/BTrees/Interfaces.py

@@ -315,27 +315,27 @@ class IBTreeModule(Interface):
 
     BTree = Attribute(
         """The IBTree for this module.
-        
+
         Also available as [prefix]BTree, as in IOBTree.""")
 
     Bucket = Attribute(
         """The leaf-node data buckets used by the BTree.
-        
+
         (IBucket is not currently defined in this file, but is essentially
         IDictionaryIsh, with the exception of __nonzero__, as of this
         writing.)
-        
+
         Also available as [prefix]Bucket, as in IOBucket.""")
 
     TreeSet = Attribute(
         """The ITreeSet for this module.
-        
+
         Also available as [prefix]TreeSet, as in IOTreeSet.""")
 
     Set = Attribute(
         """The ISet for this module: the leaf-node data buckets used by the
         TreeSet.
-        
+
         Also available as [prefix]BTree, as in IOSet.""")
 
 
@@ -456,37 +456,37 @@ class IBTreeFamily(Interface):
 
 class IIntegerObjectBTreeModule(IBTreeModule, IMerge):
     """keys, or set values, are integers; values are objects.
-    
+
     describes IOBTree and LOBTree"""
-    
+
     family = Attribute('The IBTreeFamily of this module')
 
 
 class IObjectIntegerBTreeModule(IBTreeModule, IIMerge):
     """keys, or set values, are objects; values are integers.
-    
+
     Object keys (and set values) must sort reliably (for instance, *not* on
     object id)!  Homogenous key types recommended.
-    
+
     describes OIBTree and LOBTree"""
-    
+
     family = Attribute('The IBTreeFamily of this module')
 
 
 class IIntegerIntegerBTreeModule(IBTreeModule, IIMerge, IMergeIntegerKey):
     """keys, or set values, are integers; values are also integers.
-    
+
     describes IIBTree and LLBTree"""
-    
+
     family = Attribute('The IBTreeFamily of this module')
 
 
 class IObjectObjectBTreeModule(IBTreeModule, IMerge):
     """keys, or set values, are objects; values are also objects.
-    
+
     Object keys (and set values) must sort reliably (for instance, *not* on
     object id)!  Homogenous key types recommended.
-    
+
     describes OOBTree"""
 
     # Note that there's no ``family`` attribute; all families include
@@ -495,9 +495,9 @@ class IObjectObjectBTreeModule(IBTreeModule, IMerge):
 
 class IIntegerFloatBTreeModule(IBTreeModule, IMerge):
     """keys, or set values, are integers; values are floats.
-    
+
     describes IFBTree and LFBTree"""
-    
+
     family = Attribute('The IBTreeFamily of this module')