[Python-checkins] cpython (2.7): Issue #18015: Fix unpickling of 2.7.3 and 2.7.4 namedtuples.
raymond.hettinger
python-checkins at python.org
Mon May 27 19:59:10 CEST 2013
http://hg.python.org/cpython/rev/687295c6c8f2
changeset: 83936:687295c6c8f2
branch: 2.7
parent: 83906:f4981d8eb401
user: Raymond Hettinger <python at rcn.com>
date: Mon May 27 10:58:55 2013 -0700
summary:
Issue #18015: Fix unpickling of 2.7.3 and 2.7.4 namedtuples.
files:
Doc/library/collections.rst | 6 +++
Lib/collections.py | 6 +++
Lib/test/test_collections.py | 44 +++++++++++++++++++++++-
Misc/NEWS | 2 +
4 files changed, 57 insertions(+), 1 deletions(-)
diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -639,6 +639,12 @@
'Return self as a plain tuple. Used by copy and pickle.'
return tuple(self)
<BLANKLINE>
+ __dict__ = _property(_asdict)
+ <BLANKLINE>
+ def __getstate__(self):
+ 'Exclude the OrderedDict from pickling'
+ pass
+ <BLANKLINE>
x = _property(_itemgetter(0), doc='Alias for field number 0')
<BLANKLINE>
y = _property(_itemgetter(1), doc='Alias for field number 1')
diff --git a/Lib/collections.py b/Lib/collections.py
--- a/Lib/collections.py
+++ b/Lib/collections.py
@@ -270,6 +270,12 @@
'Return self as a plain tuple. Used by copy and pickle.'
return tuple(self)
+ __dict__ = _property(_asdict)
+
+ def __getstate__(self):
+ 'Exclude the OrderedDict from pickling'
+ pass
+
{field_defs}
'''
diff --git a/Lib/test/test_collections.py b/Lib/test/test_collections.py
--- a/Lib/test/test_collections.py
+++ b/Lib/test/test_collections.py
@@ -17,6 +17,43 @@
TestNT = namedtuple('TestNT', 'x y z') # type used for pickle tests
+py273_named_tuple_pickle = '''\
+ccopy_reg
+_reconstructor
+p0
+(ctest.test_collections
+TestNT
+p1
+c__builtin__
+tuple
+p2
+(I10
+I20
+I30
+tp3
+tp4
+Rp5
+ccollections
+OrderedDict
+p6
+((lp7
+(lp8
+S'x'
+p9
+aI10
+aa(lp10
+S'y'
+p11
+aI20
+aa(lp12
+S'z'
+p13
+aI30
+aatp14
+Rp15
+b.
+'''
+
class TestNamedTuple(unittest.TestCase):
def test_factory(self):
@@ -78,12 +115,12 @@
self.assertRaises(TypeError, eval, 'Point(XXX=1, y=2)', locals()) # wrong keyword argument
self.assertRaises(TypeError, eval, 'Point(x=1)', locals()) # missing keyword argument
self.assertEqual(repr(p), 'Point(x=11, y=22)')
- self.assertNotIn('__dict__', dir(p)) # verify instance has no dict
self.assertNotIn('__weakref__', dir(p))
self.assertEqual(p, Point._make([11, 22])) # test _make classmethod
self.assertEqual(p._fields, ('x', 'y')) # test _fields attribute
self.assertEqual(p._replace(x=1), (1, 22)) # test _replace method
self.assertEqual(p._asdict(), dict(x=11, y=22)) # test _asdict method
+ self.assertEqual(vars(p), p._asdict()) # verify that vars() works
try:
p._replace(x=1, error=2)
@@ -215,6 +252,11 @@
# test __getnewargs__
self.assertEqual(t.__getnewargs__(), values)
+ def test_pickling_bug_18015(self):
+ # http://bugs.python.org/issue18015
+ pt = pickle.loads(py273_named_tuple_pickle)
+ self.assertEqual(pt.x, 10)
+
class ABCTestCase(unittest.TestCase):
def validate_abstract_methods(self, abc, *names):
diff --git a/Misc/NEWS b/Misc/NEWS
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -19,6 +19,8 @@
- Issue #17981: Closed socket on error in SysLogHandler.
+- Issue #18015: Fix unpickling of 2.7.3 and 2.7.4 namedtuples.
+
- Issue #17754: Make ctypes.util.find_library() independent of the locale.
- Fix typos in the multiprocessing module.
--
Repository URL: http://hg.python.org/cpython
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