[Removed PR] Implement interface NodeList

python/dom/Node.py

@@ -6,7 +6,7 @@
 from python.dom.DOMException import DOMException
 from python.dom.DOMString import DOMString
 from python.dom.NotImplemented.NamedNodeMap import NamedNodeMap
-from python.dom.NotImplemented.NodeList import NodeList
+from python.dom.NodeList import NodeList
 from python.dom.type_checking import AnyNode
 
 

python/dom/NodeList.py

@@ -0,0 +1,34 @@
+from __future__ import absolute_import
+
+from typing import Optional
+
+from python.dom.type_checking import AnyNode
+
+
+class NodeList(list):
+    """Interface NodeList
+
+    The `NodeList` interface provides the abstraction of an ordered collection of nodes, without defining or constraining how this collection is implemented.
+
+    The items in the `NodeList` are accessible via an integral index, starting from 0.
+    """
+
+    @property
+    def length(self) -> int:
+        """The number of nodes in the list. The range of valid child node indices is 0 to `length`-1 inclusive.
+        """
+        return len(self)
+
+    def item(self, index: int) -> Optional[AnyNode]:
+        """Returns the indexth item in the collection. If index is greater than or equal to the number of nodes in the list, this returns `None`.
+
+        Args:
+            index: Index into the collection.
+
+        Returns:
+            The node at the `index`th position in the NodeList, or `None` if that is not a valid index.
+        """
+        if 0 <= index < self.length:
+            return self[index]
+        else:
+            return None

python/dom/NotImplemented/__init__.py

@@ -12,7 +12,6 @@
 from python.dom.NotImplemented.Entity import Entity
 from python.dom.NotImplemented.EntityReference import EntityReference
 from python.dom.NotImplemented.NamedNodeMap import NamedNodeMap
-from python.dom.NotImplemented.NodeList import NodeList
 from python.dom.NotImplemented.Notation import Notation
 from python.dom.NotImplemented.ProcessingInstruction import ProcessingInstruction
 from python.dom.NotImplemented.Text import Text

python/dom/__init__.py

@@ -3,3 +3,4 @@
 from python.dom.DOMException import DOMException
 from python.dom.DOMString import DOMString
 from python.dom.Node import Node
+from python.dom.NodeList import NodeList

python/dom/type_checking.py

@@ -7,6 +7,7 @@
     from python.dom.DOMException import DOMException
     from python.dom.DOMString import DOMString
     from python.dom.Node import Node
+    from python.dom.NodeList import NodeList
 
     AnyNode = Union[
         Node,