Move import/constants to top of file to match style.

Author: gsnedders

html5lib/treewalkers/_base.py

@@ -4,6 +4,16 @@
 import gettext
 _ = gettext.gettext
 
+from xml.dom import Node
+
+DOCUMENT = Node.DOCUMENT_NODE
+DOCTYPE = Node.DOCUMENT_TYPE_NODE
+TEXT = Node.TEXT_NODE
+ELEMENT = Node.ELEMENT_NODE
+COMMENT = Node.COMMENT_NODE
+ENTITY = Node.ENTITY_NODE
+UNKNOWN = "<#UNKNOWN#>"
+
 from ..constants import voidElements, spaceCharacters
 spaceCharacters = "".join(spaceCharacters)
 
@@ -115,17 +125,6 @@ def unknown(self, nodeType):
         return self.error(_("Unknown node type: ") + nodeType)
 
 
-from xml.dom import Node
-
-DOCUMENT = Node.DOCUMENT_NODE
-DOCTYPE = Node.DOCUMENT_TYPE_NODE
-TEXT = Node.TEXT_NODE
-ELEMENT = Node.ELEMENT_NODE
-COMMENT = Node.COMMENT_NODE
-ENTITY = Node.ENTITY_NODE
-UNKNOWN = "<#UNKNOWN#>"
-
-
 class NonRecursiveTreeWalker(TreeWalker):
     def getNodeDetails(self, node):
         raise NotImplementedError