[Python-checkins] r43493 - in python/trunk: Lib/copy_reg.py Lib/test/test_copy_reg.py Misc/NEWS

Fri Mar 31 20:25:44 CEST 2006

Author: georg.brandl
Date: Fri Mar 31 20:25:44 2006
New Revision: 43493
Modified:
 python/trunk/Lib/copy_reg.py
 python/trunk/Lib/test/test_copy_reg.py
 python/trunk/Misc/NEWS
Log:
Patch #1462313, bug #1443328: the pickle modules now can handle classes
that have __private names in their __slots__.
Modified: python/trunk/Lib/copy_reg.py
==============================================================================

--- python/trunk/Lib/copy_reg.py	(original)
+++ python/trunk/Lib/copy_reg.py	Fri Mar 31 20:25:44 2006
@@ -116,8 +116,19 @@
 # Slots found -- gather slot names from all base classes
 for c in cls.__mro__:
 if "__slots__" in c.__dict__:
- names += [name for name in c.__dict__["__slots__"]
- if name not in ("__dict__", "__weakref__")]
+ slots = c.__dict__['__slots__']
+ # if class has a single slot, it can be given as a string
+ if isinstance(slots, basestring):
+ slots = (slots,)
+ for name in slots:
+ # special descriptors
+ if name in ("__dict__", "__weakref__"):
+ continue
+ # mangled names
+ elif name.startswith('__') and not name.endswith('__'):
+ names.append('_%s%s' % (c.__name__, name))
+ else:
+ names.append(name)
 
 # Cache the outcome in the class if at all possible
 try:
Modified: python/trunk/Lib/test/test_copy_reg.py
==============================================================================
--- python/trunk/Lib/test/test_copy_reg.py	(original)
+++ python/trunk/Lib/test/test_copy_reg.py	Fri Mar 31 20:25:44 2006
@@ -8,6 +8,22 @@
 pass
 
 
+class WithoutSlots(object):
+ pass
+
+class WithWeakref(object):
+ __slots__ = ('__weakref__',)
+
+class WithPrivate(object):
+ __slots__ = ('__spam',)
+
+class WithSingleString(object):
+ __slots__ = 'spam'
+
+class WithInherited(WithSingleString):
+ __slots__ = ('eggs',)
+
+
 class CopyRegTestCase(unittest.TestCase):
 
 def test_class(self):
@@ -84,6 +100,19 @@
 self.assertRaises(ValueError, copy_reg.add_extension,
 mod, func, code)
 
+ def test_slotnames(self):
+ self.assertEquals(copy_reg._slotnames(WithoutSlots), [])
+ self.assertEquals(copy_reg._slotnames(WithWeakref), [])
+ expected = ['_WithPrivate__spam']
+ self.assertEquals(copy_reg._slotnames(WithPrivate), expected)
+ self.assertEquals(copy_reg._slotnames(WithSingleString), ['spam'])
+ expected = ['eggs', 'spam']
+ expected.sort()
+ result = copy_reg._slotnames(WithInherited)
+ result.sort()
+ self.assertEquals(result, expected)
+
+
 def test_main():
 test_support.run_unittest(CopyRegTestCase)
 
Modified: python/trunk/Misc/NEWS
==============================================================================
--- python/trunk/Misc/NEWS	(original)
+++ python/trunk/Misc/NEWS	Fri Mar 31 20:25:44 2006
@@ -487,6 +487,9 @@
 Library
 -------
 
+- Patch #1462313, bug #1443328: the pickle modules now can handle classes
+ that have __private names in their __slots__.
+
 - Bug #1250170: mimetools now gracefully handles socket.gethostname()
 failures gracefully.
 
