diff --git a/mwparserfromhell/smart_list.py b/mwparserfromhell/smart_list.py
index 4a5521f..ac4ca51 100644
--- a/mwparserfromhell/smart_list.py
+++ b/mwparserfromhell/smart_list.py
@@ -32,29 +32,72 @@ class SmartList(list):
             super(SmartList, self).__init__()
         self._children = {}
 
-    def __getslice__(self, start, stop):
-        sublist = super(SmartList, self).__getslice__(start, stop)
-        sliceinfo = [start, stop, 1]
+    def __getitem__(self, key):
+        if not isinstance(key, slice):
+            return super(SmartList, self).__getitem__(key)
+        sliceinfo = [key.start, key.stop, 1 if not key.step else key.step]
         child = _ListProxy(self, sliceinfo)
         self._children[id(child)] = (child, sliceinfo)
         return child
 
+    def __setitem__(self, key, item):
+        if not isinstance(key, slice):
+            return super(SmartList, self).__setitem__(key, item)
+        item = list(item)
+        super(SmartList, self).__setitem__(key, item)
+        diff = len(item) - key.stop + key.start
+        if diff:
+            for child, (start, stop, step) in self._children.itervalues():
+                if start >= key.stop:
+                    self._children[id(child)][1][0] += diff
+                if stop >= key.stop and stop != sys.maxint:
+                    self._children[id(child)][1][1] += diff
+
+    __delitem__
+
+    def __getslice__(self, start, stop):
+        return self.__getitem__(slice(start, stop))
+
     def __setslice__(self, start, stop, iterable):
-        obj = list(iterable)
-        super(SmartList, self).__setslice__(start, stop, obj)
-        diff = len(obj) - stop + start
-        for child, (ch_start, ch_stop, step) in self._children.itervalues():
-            if ch_start >= stop:
-                self._children[id(child)][1][0] += diff
-            if ch_stop >= stop and ch_stop != sys.maxint:
-                self._children[id(child)][1][1] += diff
+        self.__setitem__(slice(start, stop), iterable)
 
-    def append(self, obj):
-        super(SmartList, self).append(obj)
+    def __delslice__(self, start, stop):
+        self.__delitem__(slice(start, stop))
+
+    __add__
+
+    __radd__
+
+    __iadd__
+
+    __mul__
+
+    __rmul__
+
+    __imul__
+
+    def append(self, item):
+        super(SmartList, self).append(item)
         for child, (start, stop, step) in self._children.itervalues():
             if stop >= len(self) - 1 and stop != sys.maxint:
                 self._children[id(child)][1][1] += 1
 
+    count
+
+    index
+
+    extend
+
+    insert
+
+    pop
+
+    remove
+
+    reverse
+
+    sort
+
 
 class _ListProxy(list):
     def __init__(self, parent, sliceinfo):
@@ -65,26 +108,71 @@ class _ListProxy(list):
     def __repr__(self):
         return repr(self._render())
 
+    __lt__
+
+    __le__
+
+    __eq__
+
+    __ne__
+
+    __gt__
+
+    __ge__
+
+    __nonzero__
+
     def __len__(self):
         return (self._stop - self._start) / self._step
 
+    def __getitem__(self, key):
+        return self._render()[key]
+
+    def __setitem__(self, key, item):
+        if isinstance(key, slice):
+            adjusted = slice(key.start + self._start, key.stop + self._stop,
+                             key.step)
+            self._parent[adjusted] = item
+        else:
+            self._parent[self._start + index] = item
+
+    __delitem__
+
     def __iter__(self):
         i = self._start
         while i < self._stop:
             yield self._parent[i]
             i += self._step
 
-    def __getitem__(self, index):
-        return self._render()[index]
+    def __reversed__(self):
+        i = self._stop - 1
+        while i >= self._start:
+            yield self._parent[i]
+            i -= self._step
 
-    def __getslice__(self, start, stop):
-        return self._render()[start:stop]
+    def __contains__(self, item):
+        return item in self._render()
 
-    def __setitem__(self, index, obj):
-        self._parent[self._start + index] = obj
+    def __getslice__(self, start, stop):
+        return self.__getitem__(slice(start, stop))
 
     def __setslice__(self, start, stop, iterable):
-        self._parent[self._start + start:self._start + stop] = iterable
+        self.__setitem__(slice(start, stop), iterable)
+
+    def __delslice__(self, start, stop):
+        self.__delitem__(slice(start, stop))
+
+    __add__
+
+    __radd__
+
+    __iadd__
+
+    __mul__
+
+    __rmul__
+
+    __imul__
 
     @property
     def _start(self):
@@ -104,5 +192,19 @@ class _ListProxy(list):
     def append(self, obj):
         self._parent.insert(self._stop, obj)
 
+    count
+
+    index
+
+    extend
+
     def insert(self, index, obj):
         self._parent.insert(self._start + index, obj)
+
+    pop
+
+    remove
+
+    reverse
+
+    sort
diff --git a/mwparserfromhell/string_mixin.py b/mwparserfromhell/string_mixin.py
index 642cd9c..e0c8364 100644
--- a/mwparserfromhell/string_mixin.py
+++ b/mwparserfromhell/string_mixin.py
@@ -34,9 +34,6 @@ class StringMixIn(object):
     def __repr__(self):
         return repr(unicode(self))
 
-    def __unicode__(self):
-        raise NotImplementedError()
-
     def __lt__(self, other):
         if isinstance(other, StringMixIn):
             return unicode(self) < unicode(other)
@@ -70,6 +67,9 @@ class StringMixIn(object):
     def __nonzero__(self):
         return bool(unicode(self))
 
+    def __unicode__(self):
+        raise NotImplementedError()
+
     def __len__(self):
         return len(unicode(self))
 
@@ -77,8 +77,8 @@ class StringMixIn(object):
         for char in unicode(self):
             yield char
 
-    def __getitem__(self, index):
-        return unicode(self)[index]
+    def __getitem__(self, key):
+        return unicode(self)[key]
 
     def __contains__(self, item):
         if isinstance(item, StringMixIn):