Merged revisions 64002-64003,64012,64036-64037,64047,64050-64052,64054-64055,64066,64071 via svnmerge from

svn+ssh://pythondev@svn.python.org/python/trunk

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  r64002 | travis.oliphant | 2008-06-07 00:33:21 +0200 (Sat, 07 Jun 2008) | 1 line

  Add long double check support to configure test.
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  r64003 | travis.oliphant | 2008-06-07 00:39:47 +0200 (Sat, 07 Jun 2008) | 1 line

  Remove locking part of new buffer protocol.
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  r64012 | facundo.batista | 2008-06-07 15:36:36 +0200 (Sat, 07 Jun 2008) | 4 lines


  Finished bug #2451.  Fixed the retrying part to make it
  more robust.
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  r64036 | georg.brandl | 2008-06-08 10:54:40 +0200 (Sun, 08 Jun 2008) | 2 lines

  #3028: tokenize passes the physical line.
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  r64037 | georg.brandl | 2008-06-08 10:59:38 +0200 (Sun, 08 Jun 2008) | 2 lines

  Argh, I read it wrong. Reverted 64036 and added a clarifying remark.
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  r64047 | raymond.hettinger | 2008-06-09 03:28:30 +0200 (Mon, 09 Jun 2008) | 1 line

  Issue3065:  Fixed pickling of named tuples.  Added tests.
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  r64050 | raymond.hettinger | 2008-06-09 08:54:45 +0200 (Mon, 09 Jun 2008) | 1 line

  Issue #2138: Add math.factorial().
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  r64051 | raymond.hettinger | 2008-06-09 10:33:37 +0200 (Mon, 09 Jun 2008) | 1 line

  Let set.union() and set.update() accept multiple inputs.
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  r64052 | raymond.hettinger | 2008-06-09 11:29:17 +0200 (Mon, 09 Jun 2008) | 1 line

  Address double-rounding scenarios by setting all variables to long doubles.
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  r64054 | raymond.hettinger | 2008-06-09 13:24:47 +0200 (Mon, 09 Jun 2008) | 1 line

  Unhappy buildbots.  Revert 64052.  Long doubles have unexpected effects on some builds.
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  r64055 | raymond.hettinger | 2008-06-09 15:07:27 +0200 (Mon, 09 Jun 2008) | 1 line

  Let set.intersection() and set.intersection_update() take multiple input arguments.
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  r64066 | robert.schuppenies | 2008-06-10 12:10:31 +0200 (Tue, 10 Jun 2008) | 2 lines

  Issue 3048: Fixed sys.getsizeof for unicode objects.
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  r64071 | thomas.heller | 2008-06-10 16:07:12 +0200 (Tue, 10 Jun 2008) | 3 lines

  NEWS entry for:
  Add an optional 'offset' parameter to byref, defaulting to zero.
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Lib/test/test_collections.py

@@ -3,6 +3,7 @@
 import unittest, doctest
 from test import support
 from collections import namedtuple
+import pickle, copy
 from collections import Hashable, Iterable, Iterator
 from collections import Sized, Container, Callable
 from collections import Set, MutableSet
@@ -10,6 +11,7 @@ from collections import Mapping, MutableMapping
 from collections import Sequence, MutableSequence
 from collections import ByteString
 
+TestNT = namedtuple('TestNT', 'x y z')    # type used for pickle tests
 
 class TestNamedTuple(unittest.TestCase):
 
@@ -111,7 +113,7 @@ class TestNamedTuple(unittest.TestCase):
         self.assertEqual(Dot(1)._replace(d=999), (999,))
         self.assertEqual(Dot(1)._fields, ('d',))
 
-        # n = 10000
+        # n = 5000
         n = 254 # SyntaxError: more than 255 arguments:
         import string, random
         names = list(set(''.join([random.choice(string.ascii_letters)
@@ -134,6 +136,23 @@ class TestNamedTuple(unittest.TestCase):
         self.assertEqual(b2, tuple(b2_expected))
         self.assertEqual(b._fields, tuple(names))
 
+    def test_pickle(self):
+        p = TestNT(x=10, y=20, z=30)
+        for module in (pickle,):
+            loads = getattr(module, 'loads')
+            dumps = getattr(module, 'dumps')
+            for protocol in -1, 0, 1, 2:
+                q = loads(dumps(p, protocol))
+                self.assertEqual(p, q)
+                self.assertEqual(p._fields, q._fields)
+
+    def test_copy(self):
+        p = TestNT(x=10, y=20, z=30)
+        for copier in copy.copy, copy.deepcopy:
+            q = copier(p)
+            self.assertEqual(p, q)
+            self.assertEqual(p._fields, q._fields)
+
 class TestOneTrickPonyABCs(unittest.TestCase):
 
     def test_Hashable(self):