Embed git in package

package.ps1 fetches PortableGit and embeds it in the package. This
eliminates all but one runtime dependency (MSVC++ Redistributable).

* Move Python into a new FOSS folder.

1 files changed, 791 insertions, 0 deletions

diff --git a/FOSS/Python/Dependencies/future-0.18.2/tests/test_past/test_olddict.py b/FOSS/Python/Dependencies/future-0.18.2/tests/test_past/test_olddict.py
new file mode 100644
index 0000000..9f21060
--- /dev/null
+++ b/FOSS/Python/Dependencies/future-0.18.2/tests/test_past/test_olddict.py
@@ -0,0 +1,791 @@
+# -*- coding: utf-8 -*-
+"""
+Tests for the resurrected Py2-like class:`dict` type.
+"""
+
+from __future__ import absolute_import, unicode_literals, print_function
+import os
+import sys
+
+from future.utils import implements_iterator, PY3
+from future.tests.base import unittest, skip26
+from past.builtins import dict
+
+
+class TestOldDict(unittest.TestCase):
+    def setUp(self):
+        self.d1 = dict({'C': 1, 'B': 2, 'A': 3})
+        self.d2 = dict(key1='value1', key2='value2')
+
+    def test_dict_empty(self):
+        """
+        dict() -> {}
+        """
+        self.assertEqual(dict(), {})
+
+    def test_dict_eq(self):
+        d = self.d1
+        self.assertEqual(dict(d), d)
+
+    def test_dict_keys(self):
+        """
+        The keys, values and items methods should now return lists on
+        Python 3.x.
+        """
+        d = self.d1
+        self.assertEqual(set(dict(d)), set(d))
+        self.assertEqual(set(dict(d).keys()), set(d.keys()))
+        keys = dict(d).keys()
+        assert isinstance(keys, list)
+        key0 = keys[0]
+
+    def test_dict_values(self):
+        d = self.d1
+        self.assertEqual(set(dict(d).values()), set(d.values()))
+        values = dict(d).values()
+        assert isinstance(values, list)
+        val0 = values[0]
+
+    def test_dict_items(self):
+        d = self.d1
+        self.assertEqual(set(dict(d).items()), set(d.items()))
+        items = dict(d).items()
+        assert isinstance(items, list)
+        item0 = items[0]
+
+    def test_isinstance_dict(self):
+        self.assertTrue(isinstance(self.d1, dict))
+
+    def test_dict_getitem(self):
+        d = dict({'C': 1, 'B': 2, 'A': 3})
+        self.assertEqual(d['C'], 1)
+        self.assertEqual(d['B'], 2)
+        self.assertEqual(d['A'], 3)
+        with self.assertRaises(KeyError):
+            self.assertEqual(d['D'])
+
+    def test_methods_produce_lists(self):
+        for d in (dict(self.d1), self.d2):
+            assert isinstance(d.keys(), list)
+            assert isinstance(d.values(), list)
+            assert isinstance(d.items(), list)
+
+    @unittest.skipIf(sys.version_info[:2] == (2, 6),
+             'set-like behaviour of dict methods is only available in Py2.7+')
+    def test_set_like_behaviour(self):
+        d1, d2 = self.d1, self.d2
+        self.assertEqual(dict(d1).viewkeys() & dict(d2).viewkeys(), set())
+        self.assertEqual(dict(d1).viewkeys() | dict(d2).viewkeys(),
+                         set(['key1', 'key2', 'C', 'B', 'A']))
+        self.assertTrue(isinstance(d1.viewvalues() | d2.viewkeys(), set))
+        self.assertTrue(isinstance(d1.viewitems() | d2.viewitems(), set))
+
+        with self.assertRaises(TypeError):
+            d1.values() | d2.values()
+            d1.keys() | d2.keys()
+            d1.items() | d2.items()
+
+    def test_braces_create_newdict_object(self):
+        """
+        It would nice if the {} dict syntax could be coaxed
+        into producing our new dict objects somehow ...
+        """
+        d = self.d1
+        if False:    # This doesn't work ...
+            self.assertTrue(type(d) == dict)
+
+
+# import UserDict
+import random, string
+import gc, weakref
+
+
+class Py2DictTest(unittest.TestCase):
+    """
+    These are Py2/3-compatible ports of the unit tests from Python 2.7's
+    tests/test_dict.py
+    """
+
+    def test_constructor(self):
+        # calling built-in types without argument must return empty
+        self.assertEqual(dict(), {})
+        self.assertIsNot(dict(), {})
+
+    @skip26
+    def test_literal_constructor(self):
+        # check literal constructor for different sized dicts
+        # (to exercise the BUILD_MAP oparg).
+        for n in (0, 1, 6, 256, 400):
+            items = [(''.join(random.sample(string.ascii_letters, 8)), i)
+                     for i in range(n)]
+            random.shuffle(items)
+            formatted_items = ('{!r}: {:d}'.format(k, v) for k, v in items)
+            dictliteral = '{' + ', '.join(formatted_items) + '}'
+            self.assertEqual(eval(dictliteral), dict(items))
+
+    def test_bool(self):
+        self.assertIs(not dict(), True)
+        self.assertTrue(dict({1: 2}))
+        self.assertIs(bool(dict({})), False)
+        self.assertIs(bool(dict({1: 2})), True)
+
+    def test_keys(self):
+        d = dict()
+        self.assertEqual(d.keys(), [])
+        d = dict({'a': 1, 'b': 2})
+        k = d.keys()
+        self.assertTrue(d.has_key('a'))
+        self.assertTrue(d.has_key('b'))
+
+        self.assertRaises(TypeError, d.keys, None)
+
+    def test_values(self):
+        d = dict()
+        self.assertEqual(d.values(), [])
+        d = dict({1:2})
+        self.assertEqual(d.values(), [2])
+
+        self.assertRaises(TypeError, d.values, None)
+
+    def test_items(self):
+        d = dict()
+        self.assertEqual(d.items(), [])
+
+        d = dict({1:2})
+        self.assertEqual(d.items(), [(1, 2)])
+
+        self.assertRaises(TypeError, d.items, None)
+
+    def test_has_key(self):
+        d = dict()
+        self.assertFalse(d.has_key('a'))
+        d = dict({'a': 1, 'b': 2})
+        k = d.keys()
+        k.sort()
+        self.assertEqual(k, ['a', 'b'])
+
+        self.assertRaises(TypeError, d.has_key)
+
+    def test_contains(self):
+        d = dict()
+        self.assertNotIn('a', d)
+        self.assertFalse('a' in d)
+        self.assertTrue('a' not in d)
+        d = dict({'a': 1, 'b': 2})
+        self.assertIn('a', d)
+        self.assertIn('b', d)
+        self.assertNotIn('c', d)
+
+        self.assertRaises(TypeError, d.__contains__)
+
+    def test_len(self):
+        d = dict()
+        self.assertEqual(len(d), 0)
+        d = dict({'a': 1, 'b': 2})
+        self.assertEqual(len(d), 2)
+
+    def test_getitem(self):
+        d = dict({'a': 1, 'b': 2})
+        self.assertEqual(d['a'], 1)
+        self.assertEqual(d['b'], 2)
+        d['c'] = 3
+        d['a'] = 4
+        self.assertEqual(d['c'], 3)
+        self.assertEqual(d['a'], 4)
+        del d['b']
+        self.assertEqual(d, dict({'a': 4, 'c': 3}))
+
+        self.assertRaises(TypeError, d.__getitem__)
+
+        class BadEq(object):
+            def __eq__(self, other):
+                raise Exc()
+            def __hash__(self):
+                return 24
+
+        d = dict()
+        d[BadEq()] = 42
+        self.assertRaises(KeyError, d.__getitem__, 23)
+
+        class Exc(Exception): pass
+
+        class BadHash(object):
+            fail = False
+            def __hash__(self):
+                if self.fail:
+                    raise Exc()
+                else:
+                    return 42
+
+        x = BadHash()
+        d[x] = 42
+        x.fail = True
+        self.assertRaises(Exc, d.__getitem__, x)
+
+    def test_clear(self):
+        d = dict({1:1, 2:2, 3:3})
+        d.clear()
+        self.assertEqual(d, {})
+
+        self.assertRaises(TypeError, d.clear, None)
+
+    def test_update(self):
+        d = dict()
+        d.update({1:100})
+        d.update(dict({2:20}))
+        d.update({1:1, 2:2, 3:3})
+        self.assertEqual(d, {1:1, 2:2, 3:3})
+
+        d.update()
+        self.assertEqual(d, {1:1, 2:2, 3:3})
+
+        self.assertRaises((TypeError, AttributeError), d.update, None)
+
+        class SimpleUserDict:
+            def __init__(self):
+                self.d = dict({1:1, 2:2, 3:3})
+            def keys(self):
+                return self.d.keys()
+            def __getitem__(self, i):
+                return self.d[i]
+        d.clear()
+        d.update(SimpleUserDict())
+        self.assertEqual(d, {1:1, 2:2, 3:3})
+
+        class Exc(Exception): pass
+
+        d.clear()
+        class FailingUserDict:
+            def keys(self):
+                raise Exc
+        self.assertRaises(Exc, d.update, FailingUserDict())
+
+        class FailingUserDict:
+            def keys(self):
+                @implements_iterator
+                class BogonIter:
+                    def __init__(self):
+                        self.i = 1
+                    def __iter__(self):
+                        return self
+                    def __next__(self):
+                        if self.i:
+                            self.i = 0
+                            return 'a'
+                        raise Exc
+                return BogonIter()
+            def __getitem__(self, key):
+                return key
+        self.assertRaises(Exc, d.update, FailingUserDict())
+
+        class FailingUserDict:
+            def keys(self):
+                @implements_iterator
+                class BogonIter:
+                    def __init__(self):
+                        self.i = ord('a')
+                    def __iter__(self):
+                        return self
+                    def __next__(self):
+                        if self.i <= ord('z'):
+                            rtn = chr(self.i)
+                            self.i += 1
+                            return rtn
+                        raise StopIteration
+                return BogonIter()
+            def __getitem__(self, key):
+                raise Exc
+        self.assertRaises(Exc, d.update, FailingUserDict())
+
+        @implements_iterator
+        class badseq(object):
+            def __iter__(self):
+                return self
+            def __next__(self):
+                raise Exc()
+
+        self.assertRaises(Exc, {}.update, badseq())
+
+        self.assertRaises(ValueError, {}.update, [(1, 2, 3)])
+
+    def test_fromkeys(self):
+        self.assertEqual(dict.fromkeys('abc'), {'a':None, 'b':None, 'c':None})
+        d = dict()
+        self.assertIsNot(d.fromkeys('abc'), d)
+        self.assertEqual(d.fromkeys('abc'), {'a':None, 'b':None, 'c':None})
+        self.assertEqual(d.fromkeys((4,5),0), {4:0, 5:0})
+        self.assertEqual(d.fromkeys([]), {})
+        def g():
+            yield 1
+        self.assertEqual(d.fromkeys(g()), {1:None})
+        self.assertRaises(TypeError, dict().fromkeys, 3)
+        class dictlike(dict): pass
+        self.assertEqual(dictlike.fromkeys('a'), {'a':None})
+        self.assertEqual(dictlike().fromkeys('a'), {'a':None})
+        self.assertIsInstance(dictlike.fromkeys('a'), dictlike)
+        self.assertIsInstance(dictlike().fromkeys('a'), dictlike)
+        # class mydict(dict):
+        #     def __new__(cls):
+        #         return UserDict.UserDict()
+        # ud = mydict.fromkeys('ab')
+        # self.assertEqual(ud, {'a':None, 'b':None})
+        # self.assertIsInstance(ud, UserDict.UserDict)
+        # self.assertRaises(TypeError, dict.fromkeys)
+
+        class Exc(Exception): pass
+
+        class baddict1(dict):
+            def __init__(self):
+                raise Exc()
+
+        self.assertRaises(Exc, baddict1.fromkeys, [1])
+
+        @implements_iterator
+        class BadSeq(object):
+            def __iter__(self):
+                return self
+            def __next__(self):
+                raise Exc()
+
+        self.assertRaises(Exc, dict.fromkeys, BadSeq())
+
+        class baddict2(dict):
+            def __setitem__(self, key, value):
+                raise Exc()
+
+        self.assertRaises(Exc, baddict2.fromkeys, [1])
+
+        # test fast path for dictionary inputs
+        d = dict(zip(range(6), range(6)))
+        self.assertEqual(dict.fromkeys(d, 0), dict(zip(range(6), [0]*6)))
+
+        class baddict3(dict):
+            def __new__(cls):
+                return d
+        d = dict((i, i) for i in range(10))
+        res = d.copy()
+        res.update(a=None, b=None, c=None)
+        # Was: self.assertEqual(baddict3.fromkeys(set(["a", "b", "c"])), res)
+        # Infinite loop on Python 2.6 and 2.7 ...
+
+    def test_copy(self):
+        d = dict({1:1, 2:2, 3:3})
+        self.assertEqual(d.copy(), {1:1, 2:2, 3:3})
+        self.assertEqual({}.copy(), {})
+        self.assertRaises(TypeError, d.copy, None)
+
+    def test_get(self):
+        d = dict()
+        self.assertIs(d.get('c'), None)
+        self.assertEqual(d.get('c', 3), 3)
+        d = dict({'a': 1, 'b': 2})
+        self.assertIs(d.get('c'), None)
+        self.assertEqual(d.get('c', 3), 3)
+        self.assertEqual(d.get('a'), 1)
+        self.assertEqual(d.get('a', 3), 1)
+        self.assertRaises(TypeError, d.get)
+        self.assertRaises(TypeError, d.get, None, None, None)
+
+    @skip26
+    def test_setdefault(self):
+        # dict.setdefault()
+        d = dict()
+        self.assertIs(d.setdefault('key0'), None)
+        d.setdefault('key0', [])
+        self.assertIs(d.setdefault('key0'), None)
+        d.setdefault('key', []).append(3)
+        self.assertEqual(d['key'][0], 3)
+        d.setdefault('key', []).append(4)
+        self.assertEqual(len(d['key']), 2)
+        self.assertRaises(TypeError, d.setdefault)
+
+        class Exc(Exception): pass
+
+        class BadHash(object):
+            fail = False
+            def __hash__(self):
+                if self.fail:
+                    raise Exc()
+                else:
+                    return 42
+
+        x = BadHash()
+        d[x] = 42
+        x.fail = True
+        self.assertRaises(Exc, d.setdefault, x, [])
+
+    @skip26
+    def test_setdefault_atomic(self):
+        # Issue #13521: setdefault() calls __hash__ and __eq__ only once.
+        class Hashed(object):
+            def __init__(self):
+                self.hash_count = 0
+                self.eq_count = 0
+            def __hash__(self):
+                self.hash_count += 1
+                return 42
+            def __eq__(self, other):
+                self.eq_count += 1
+                return id(self) == id(other)
+        hashed1 = Hashed()
+        y = dict({hashed1: 5})
+        hashed2 = Hashed()
+        y.setdefault(hashed2, [])
+        self.assertEqual(hashed1.hash_count, 1)
+        if PY3:
+            self.assertEqual(hashed2.hash_count, 1)
+            self.assertEqual(hashed1.eq_count + hashed2.eq_count, 1)
+
+    def test_popitem(self):
+        # dict.popitem()
+        for copymode in -1, +1:
+            # -1: b has same structure as a
+            # +1: b is a.copy()
+            for log2size in range(12):
+                size = 2**log2size
+                a = dict()
+                b = dict()
+                for i in range(size):
+                    a[repr(i)] = i
+                    if copymode < 0:
+                        b[repr(i)] = i
+                if copymode > 0:
+                    b = a.copy()
+                for i in range(size):
+                    ka, va = ta = a.popitem()
+                    self.assertEqual(va, int(ka))
+                    kb, vb = tb = b.popitem()
+                    self.assertEqual(vb, int(kb))
+                    self.assertFalse(copymode < 0 and ta != tb)
+                self.assertFalse(a)
+                self.assertFalse(b)
+
+        d = dict()
+        self.assertRaises(KeyError, d.popitem)
+
+    def test_pop(self):
+        # Tests for pop with specified key
+        d = dict()
+        k, v = 'abc', 'def'
+        d[k] = v
+        self.assertRaises(KeyError, d.pop, 'ghi')
+
+        self.assertEqual(d.pop(k), v)
+        self.assertEqual(len(d), 0)
+
+        self.assertRaises(KeyError, d.pop, k)
+
+        self.assertEqual(d.pop(k, v), v)
+        d[k] = v
+        self.assertEqual(d.pop(k, 1), v)
+
+        self.assertRaises(TypeError, d.pop)
+
+        class Exc(Exception): pass
+
+        class BadHash(object):
+            fail = False
+            def __hash__(self):
+                if self.fail:
+                    raise Exc()
+                else:
+                    return 42
+
+        x = BadHash()
+        d[x] = 42
+        x.fail = True
+        self.assertRaises(Exc, d.pop, x)
+
+    def test_mutatingiteration(self):
+        # changing dict size during iteration
+        d = dict()
+        d[1] = 1
+        with self.assertRaises(RuntimeError):
+            for i in d:
+                d[i+1] = 1
+
+    def test_repr(self):
+        d = dict()
+        self.assertEqual(repr(d), '{}')
+        d[1] = 2
+        self.assertEqual(repr(d), '{1: 2}')
+        d = dict()
+        d[1] = d
+        self.assertEqual(repr(d), '{1: {...}}')
+
+        class Exc(Exception): pass
+
+        class BadRepr(object):
+            def __repr__(self):
+                raise Exc()
+
+        d = dict({1: BadRepr()})
+        self.assertRaises(Exc, repr, d)
+
+    @unittest.skip('Comparing dicts for order has not been forward-ported')
+    def test_le(self):
+        self.assertFalse(dict() < {})
+        self.assertFalse(dict() < dict())
+        self.assertFalse(dict({1: 2}) < {1: 2})
+
+        class Exc(Exception): pass
+
+        class BadCmp(object):
+            def __eq__(self, other):
+                raise Exc()
+            def __hash__(self):
+                return 42
+
+        d1 = dict({BadCmp(): 1})
+        d2 = dict({1: 1})
+
+        with self.assertRaises(Exc):
+            d1 < d2
+
+    @skip26
+    def test_missing(self):
+        # Make sure dict doesn't have a __missing__ method
+        self.assertFalse(hasattr(dict, "__missing__"))
+        self.assertFalse(hasattr(dict(), "__missing__"))
+        # Test several cases:
+        # (D) subclass defines __missing__ method returning a value
+        # (E) subclass defines __missing__ method raising RuntimeError
+        # (F) subclass sets __missing__ instance variable (no effect)
+        # (G) subclass doesn't define __missing__ at a all
+        class D(dict):
+            def __missing__(self, key):
+                return 42
+        d = D({1: 2, 3: 4})
+        self.assertEqual(d[1], 2)
+        self.assertEqual(d[3], 4)
+        self.assertNotIn(2, d)
+        self.assertNotIn(2, d.keys())
+        self.assertEqual(d[2], 42)
+
+        class E(dict):
+            def __missing__(self, key):
+                raise RuntimeError(key)
+        e = E()
+        with self.assertRaises(RuntimeError) as c:
+            e[42]
+        self.assertEqual(c.exception.args, (42,))
+
+        class F(dict):
+            def __init__(self):
+                # An instance variable __missing__ should have no effect
+                self.__missing__ = lambda key: None
+        f = F()
+        with self.assertRaises(KeyError) as c:
+            f[42]
+        self.assertEqual(c.exception.args, (42,))
+
+        class G(dict):
+            pass
+        g = G()
+        with self.assertRaises(KeyError) as c:
+            g[42]
+        self.assertEqual(c.exception.args, (42,))
+
+    @skip26
+    def test_tuple_keyerror(self):
+        # SF #1576657
+        d = dict()
+        with self.assertRaises(KeyError) as c:
+            d[(1,)]
+        self.assertEqual(c.exception.args, ((1,),))
+
+    # def test_bad_key(self):
+    #     # Dictionary lookups should fail if __cmp__() raises an exception.
+    #     class CustomException(Exception):
+    #         pass
+
+    #     class BadDictKey:
+    #         def __hash__(self):
+    #             return hash(self.__class__)
+
+    #         def __cmp__(self, other):
+    #             if isinstance(other, self.__class__):
+    #                 raise CustomException
+    #             return other
+
+    #     d = dict()
+    #     x1 = BadDictKey()
+    #     x2 = BadDictKey()
+    #     d[x1] = 1
+    #     for stmt in ['d[x2] = 2',
+    #                  'z = d[x2]',
+    #                  'x2 in d',
+    #                  'd.has_key(x2)',
+    #                  'd.get(x2)',
+    #                  'd.setdefault(x2, 42)',
+    #                  'd.pop(x2)',
+    #                  'd.update({x2: 2})']:
+    #         with self.assertRaises(CustomException):
+    #             utils.exec_(stmt, locals())
+    #
+    # def test_resize1(self):
+    #     # Dict resizing bug, found by Jack Jansen in 2.2 CVS development.
+    #     # This version got an assert failure in debug build, infinite loop in
+    #     # release build.  Unfortunately, provoking this kind of stuff requires
+    #     # a mix of inserts and deletes hitting exactly the right hash codes in
+    #     # exactly the right order, and I can't think of a randomized approach
+    #     # that would be *likely* to hit a failing case in reasonable time.
+
+    #     d = {}
+    #     for i in range(5):
+    #         d[i] = i
+    #     for i in range(5):
+    #         del d[i]
+    #     for i in range(5, 9):  # i==8 was the problem
+    #         d[i] = i
+
+    # def test_resize2(self):
+    #     # Another dict resizing bug (SF bug #1456209).
+    #     # This caused Segmentation faults or Illegal instructions.
+
+    #     class X(object):
+    #         def __hash__(self):
+    #             return 5
+    #         def __eq__(self, other):
+    #             if resizing:
+    #                 d.clear()
+    #             return False
+    #     d = {}
+    #     resizing = False
+    #     d[X()] = 1
+    #     d[X()] = 2
+    #     d[X()] = 3
+    #     d[X()] = 4
+    #     d[X()] = 5
+    #     # now trigger a resize
+    #     resizing = True
+    #     d[9] = 6
+
+    # def test_empty_presized_dict_in_freelist(self):
+    #     # Bug #3537: if an empty but presized dict with a size larger
+    #     # than 7 was in the freelist, it triggered an assertion failure
+    #     with self.assertRaises(ZeroDivisionError):
+    #         d = {'a': 1 // 0, 'b': None, 'c': None, 'd': None, 'e': None,
+    #              'f': None, 'g': None, 'h': None}
+    #     d = {}
+
+    # def test_container_iterator(self):
+    #     # Bug #3680: tp_traverse was not implemented for dictiter objects
+    #     class C(object):
+    #         pass
+    #     iterators = (dict.iteritems, dict.itervalues, dict.iterkeys)
+    #     for i in iterators:
+    #         obj = C()
+    #         ref = weakref.ref(obj)
+    #         container = {obj: 1}
+    #         obj.x = i(container)
+    #         del obj, container
+    #         gc.collect()
+    #         self.assertIs(ref(), None, "Cycle was not collected")
+
+    # def _not_tracked(self, t):
+    #     # Nested containers can take several collections to untrack
+    #     gc.collect()
+    #     gc.collect()
+    #     self.assertFalse(gc.is_tracked(t), t)
+
+    # def _tracked(self, t):
+    #     self.assertTrue(gc.is_tracked(t), t)
+    #     gc.collect()
+    #     gc.collect()
+    #     self.assertTrue(gc.is_tracked(t), t)
+
+    # @test_support.cpython_only
+    # def test_track_literals(self):
+    #     # Test GC-optimization of dict literals
+    #     x, y, z, w = 1.5, "a", (1, None), []
+
+    #     self._not_tracked({})
+    #     self._not_tracked({x:(), y:x, z:1})
+    #     self._not_tracked({1: "a", "b": 2})
+    #     self._not_tracked({1: 2, (None, True, False, ()): int})
+    #     self._not_tracked({1: object()})
+
+    #     # Dicts with mutable elements are always tracked, even if those
+    #     # elements are not tracked right now.
+    #     self._tracked({1: []})
+    #     self._tracked({1: ([],)})
+    #     self._tracked({1: {}})
+    #     self._tracked({1: set()})
+
+    # @test_support.cpython_only
+    # def test_track_dynamic(self):
+    #     # Test GC-optimization of dynamically-created dicts
+    #     class MyObject(object):
+    #         pass
+    #     x, y, z, w, o = 1.5, "a", (1, object()), [], MyObject()
+
+    #     d = dict()
+    #     self._not_tracked(d)
+    #     d[1] = "a"
+    #     self._not_tracked(d)
+    #     d[y] = 2
+    #     self._not_tracked(d)
+    #     d[z] = 3
+    #     self._not_tracked(d)
+    #     self._not_tracked(d.copy())
+    #     d[4] = w
+    #     self._tracked(d)
+    #     self._tracked(d.copy())
+    #     d[4] = None
+    #     self._not_tracked(d)
+    #     self._not_tracked(d.copy())
+
+    #     # dd isn't tracked right now, but it may mutate and therefore d
+    #     # which contains it must be tracked.
+    #     d = dict()
+    #     dd = dict()
+    #     d[1] = dd
+    #     self._not_tracked(dd)
+    #     self._tracked(d)
+    #     dd[1] = d
+    #     self._tracked(dd)
+
+    #     d = dict.fromkeys([x, y, z])
+    #     self._not_tracked(d)
+    #     dd = dict()
+    #     dd.update(d)
+    #     self._not_tracked(dd)
+    #     d = dict.fromkeys([x, y, z, o])
+    #     self._tracked(d)
+    #     dd = dict()
+    #     dd.update(d)
+    #     self._tracked(dd)
+
+    #     d = dict(x=x, y=y, z=z)
+    #     self._not_tracked(d)
+    #     d = dict(x=x, y=y, z=z, w=w)
+    #     self._tracked(d)
+    #     d = dict()
+    #     d.update(x=x, y=y, z=z)
+    #     self._not_tracked(d)
+    #     d.update(w=w)
+    #     self._tracked(d)
+
+    #     d = dict([(x, y), (z, 1)])
+    #     self._not_tracked(d)
+    #     d = dict([(x, y), (z, w)])
+    #     self._tracked(d)
+    #     d = dict()
+    #     d.update([(x, y), (z, 1)])
+    #     self._not_tracked(d)
+    #     d.update([(x, y), (z, w)])
+    #     self._tracked(d)
+
+    # @test_support.cpython_only
+    # def test_track_subtypes(self):
+    #     # Dict subtypes are always tracked
+    #     class MyDict(dict):
+    #         pass
+    #     self._tracked(MyDict())
+
+
+if __name__ == '__main__':
+    # Only run these tests on Python 3 ...
+    if PY3:
+        unittest.main()