--- a/wokkel/rsm.py	Fri Apr 17 10:39:41 2015 +0200
+++ b/wokkel/rsm.py	Wed Apr 22 18:30:28 2015 +0200
@@ -36,8 +36,8 @@
     """
     A Result Set Management request.
 
-    @ivar max: limit on the number of retrieved items.
-    @itype max: C{int} or C{unicode}
+    @ivar max_: limit on the number of retrieved items.
+    @itype max_: C{int} or C{unicode}
 
     @ivar index: starting index of the requested page.
     @itype index: C{int} or C{unicode}
@@ -49,30 +49,30 @@
     @itype before: C{unicode}
     """
 
-    max = 10
+    max_ = 10
     index = None
     after = None
     before = None
 
-    def __init__(self, max=None, index=None, after=None, before=None):
-        if max is not None:
-            max = int(max)
-            assert(max >= 0)
-            self.max = max
+    def __init__(self, max_=None, index=None, after=None, before=None):
+        if max_ is not None:
+            max_ = int(max_)
+            assert max_ >= 0
+            self.max_ = max_
 
         if index is not None:
-            assert(after is None and before is None)
+            assert after is None and before is None
             index = int(index)
-            assert(index >= 0)
+            assert index >= 0
             self.index = index
 
         if after is not None:
-            assert(before is None)
-            assert(isinstance(after, unicode))
+            assert before is None
+            assert isinstance(after, unicode)
             self.after = after
 
         if before is not None:
-            assert(isinstance(before, unicode))
+            assert isinstance(before, unicode)
             self.before = before
 
     @classmethod
@@ -99,8 +99,8 @@
             elif elt.name in ('max', 'index'):
                 setattr(request, elt.name, int(''.join(elt.children)))
 
-        if request.max is None:
-            raise RSMError("RSM request is missing its 'max' element")
+        if request.max_ is None:
+            raise RSMError("RSM request is missing its 'max_' element")
 
         return request
 
@@ -111,7 +111,7 @@
         @rtype: L{domish.Element}
         """
         set_elt = domish.Element((NS_RSM, 'set'))
-        set_elt.addElement('max').addContent(unicode(self.max))
+        set_elt.addElement('max').addContent(unicode(self.max_))
 
         if self.index is not None:
             set_elt.addElement('index').addContent(unicode(self.index))
@@ -137,7 +137,7 @@
         @rtype: L{domish.Element}
         """
         if element.name == 'pubsub' and hasattr(element, 'items'):
-            element.items.attributes['max_items'] = unicode(self.max)
+            element.items.attributes['max_items'] = unicode(self.max_)
 
         set_elt = self.toElement()
         element.addChild(set_elt)
@@ -169,18 +169,18 @@
 
     def __init__(self, count=None, index=None, first=None, last=None):
         if count is not None:
-            assert(isinstance(count, int) and count >= 0)
+            assert isinstance(count, int) and count >= 0
             self.count = count
 
         if index is not None:
-            assert(isinstance(index, int) and index >= 0)
+            assert isinstance(index, int) and index >= 0
             self.index = index
-            assert(isinstance(first, unicode))
+            assert isinstance(first, unicode)
             self.first = first
-            assert(isinstance(last, unicode))
+            assert isinstance(last, unicode)
             self.last = last
         else:
-            assert(first is None and last is None)
+            assert first is None and last is None
 
     @classmethod
     def parse(cls, element):
@@ -372,7 +372,7 @@
                                                           resource, request)
         set_elts = [elt for elt in result if elt.name == 'set']
         if set_elts:
-            assert(len(set_elts) == 1)
+            assert len(set_elts) == 1
             response.addChild(set_elts[0])
 
         return response