Merged revisions 74359,75081,75088,75213,75278,75303,75427-75428,75734-75736,75865,76059-76061 via svnmerge from
svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3

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  r74359 | benjamin.peterson | 2009-08-12 17:23:13 -0500 (Wed, 12 Aug 2009) | 1 line

  don't pass the deprecated print_function option
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  r75081 | benjamin.peterson | 2009-09-26 22:02:57 -0500 (Sat, 26 Sep 2009) | 1 line

  let 2to3 work with extended iterable unpacking
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  r75088 | benjamin.peterson | 2009-09-27 11:25:21 -0500 (Sun, 27 Sep 2009) | 1 line

  look on the type only for __call__
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  r75213 | benjamin.peterson | 2009-10-03 10:09:46 -0500 (Sat, 03 Oct 2009) | 5 lines

  revert 75212; it's not correct

  People can use isinstance(x, collections.Callable) if they expect objects with
  __call__ in their instance dictionaries.
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  r75278 | benjamin.peterson | 2009-10-07 16:25:56 -0500 (Wed, 07 Oct 2009) | 4 lines

  fix whitespace problems with fix_idioms #3563

  Patch by Joe Amenta.
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  r75303 | benjamin.peterson | 2009-10-09 16:59:11 -0500 (Fri, 09 Oct 2009) | 1 line

  port latin-1 and utf-8 cookie improvements
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  r75427 | benjamin.peterson | 2009-10-14 20:35:57 -0500 (Wed, 14 Oct 2009) | 1 line

  force floor division
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  r75428 | benjamin.peterson | 2009-10-14 20:39:21 -0500 (Wed, 14 Oct 2009) | 1 line

  silence -3 warnings about __hash__
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  r75734 | benjamin.peterson | 2009-10-26 16:25:53 -0500 (Mon, 26 Oct 2009) | 2 lines

  warn on map(None, ...) with more than 2 arguments #7203
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  r75735 | benjamin.peterson | 2009-10-26 16:28:25 -0500 (Mon, 26 Oct 2009) | 1 line

  remove unused result
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  r75736 | benjamin.peterson | 2009-10-26 16:29:02 -0500 (Mon, 26 Oct 2009) | 1 line

  using get() here is a bit pointless
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  r75865 | benjamin.peterson | 2009-10-27 15:49:00 -0500 (Tue, 27 Oct 2009) | 1 line

  explain reason for warning
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  r76059 | benjamin.peterson | 2009-11-02 11:43:47 -0600 (Mon, 02 Nov 2009) | 1 line

  tuples are no longer used for children
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  r76060 | benjamin.peterson | 2009-11-02 11:55:40 -0600 (Mon, 02 Nov 2009) | 1 line

  revert r76059; apparently some fixers rely on Leaf no () for children
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  r76061 | benjamin.peterson | 2009-11-02 12:06:17 -0600 (Mon, 02 Nov 2009) | 1 line

  make fix_tuple_params keep the tree valid #7253
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diff --git a/Lib/lib2to3/pytree.py b/Lib/lib2to3/pytree.py
index 3daab16..27cdd72 100644
--- a/Lib/lib2to3/pytree.py
+++ b/Lib/lib2to3/pytree.py
@@ -63,6 +63,8 @@
             return NotImplemented
         return self._eq(other)
 
+    __hash__ = None # For Py3 compatibility.
+
     def __ne__(self, other):
         """
         Compare two nodes for inequality.