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Issue #23611: Serializing more "lookupable" objects (such as unbound methods

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or nested classes) now are supported with pickle protocols < 4.
This commit is contained in:
Serhiy Storchaka 2015-03-31 14:07:24 +03:00
parent 72e731cc03
commit 58e4134a1c
5 changed files with 114 additions and 66 deletions
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19
Lib/test/pickletester.py
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@ -1602,13 +1602,24 @@ class AbstractPickleTests(unittest.TestCase):
class B:
class C:
pass
for proto in range(4, pickle.HIGHEST_PROTOCOL + 1):
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
for obj in [Nested.A, Nested.A.B, Nested.A.B.C]:
with self.subTest(proto=proto, obj=obj):
unpickled = self.loads(self.dumps(obj, proto))
self.assertIs(obj, unpickled)
def test_recursive_nested_names(self):
global Recursive
class Recursive:
pass
Recursive.mod = sys.modules[Recursive.__module__]
Recursive.__qualname__ = 'Recursive.mod.Recursive'
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
with self.subTest(proto=proto):
unpickled = self.loads(self.dumps(Recursive, proto))
self.assertIs(unpickled, Recursive)
del Recursive.mod # break reference loop
def test_py_methods(self):
global PyMethodsTest
class PyMethodsTest:
@ -1647,7 +1658,7 @@ class AbstractPickleTests(unittest.TestCase):
(PyMethodsTest.biscuits, PyMethodsTest),
(PyMethodsTest.Nested.pie, PyMethodsTest.Nested)
)
for proto in range(4, pickle.HIGHEST_PROTOCOL + 1):
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
for method in py_methods:
with self.subTest(proto=proto, method=method):
unpickled = self.loads(self.dumps(method, proto))
@ -1687,7 +1698,7 @@ class AbstractPickleTests(unittest.TestCase):
(Subclass.Nested("sweet").count, ("e",)),
(Subclass.Nested.count, (Subclass.Nested("sweet"), "e")),
)
for proto in range(4, pickle.HIGHEST_PROTOCOL + 1):
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
for method, args in c_methods:
with self.subTest(proto=proto, method=method):
unpickled = self.loads(self.dumps(method, proto))