2 files changed, 7 insertions, 141 deletions
diff --git a/Lib/test/test_shelve.py b/Lib/test/test_shelve.py
index e5d19f5..6d917ff 100644
--- a/Lib/test/test_shelve.py
+++ b/Lib/test/test_shelve.py
@@ -2,13 +2,13 @@ import unittest
 import shelve
 import glob
 from test import test_support
-from UserDict import DictMixin
+from collections import MutableMapping
 from test.test_anydbm import dbm_iterator
 
 def L1(s):
     return s.decode("latin-1")
 
-class byteskeydict(DictMixin):
+class byteskeydict(MutableMapping):
     "Mapping that supports bytes keys"
 
     def __init__(self):
@@ -23,10 +23,15 @@ class byteskeydict(DictMixin):
     def __delitem__(self, key):
         del self.d[L1(key)]
 
+    def __len__(self):
+        return len(self.d)
+
     def iterkeys(self):
         for k in self.d.keys():
             yield k.encode("latin-1")
 
+    __iter__ = iterkeys
+
     def keys(self):
         return list(self.iterkeys())
 
diff --git a/Lib/test/test_userdict.py b/Lib/test/test_userdict.py
index 039ed65..ac33be7 100644
--- a/Lib/test/test_userdict.py
+++ b/Lib/test/test_userdict.py
@@ -194,150 +194,11 @@ class UserDictTest(mapping_tests.TestHashMappingProtocol):
         else:
             self.fail("g[42] didn't raise KeyError")
 
-##########################
-# Test Dict Mixin
 
-class SeqDict(UserDict.DictMixin):
-    """Dictionary lookalike implemented with lists.
-
-    Used to test and demonstrate DictMixin
-    """
-    def __init__(self, other=None, **kwargs):
-        self.keylist = []
-        self.valuelist = []
-        if other is not None:
-            for (key, value) in other:
-                self[key] = value
-        for (key, value) in kwargs.items():
-            self[key] = value
-    def __getitem__(self, key):
-        try:
-            i = self.keylist.index(key)
-        except ValueError:
-            raise KeyError
-        return self.valuelist[i]
-    def __setitem__(self, key, value):
-        try:
-            i = self.keylist.index(key)
-            self.valuelist[i] = value
-        except ValueError:
-            self.keylist.append(key)
-            self.valuelist.append(value)
-    def __delitem__(self, key):
-        try:
-            i = self.keylist.index(key)
-        except ValueError:
-            raise KeyError
-        self.keylist.pop(i)
-        self.valuelist.pop(i)
-    def keys(self):
-        return list(self.keylist)
-    def copy(self):
-        d = self.__class__()
-        for key, value in self.items():
-            d[key] = value
-        return d
-    @classmethod
-    def fromkeys(cls, keys, value=None):
-        d = cls()
-        for key in keys:
-            d[key] = value
-        return d
-
-class UserDictMixinTest(mapping_tests.TestMappingProtocol):
-    type2test = SeqDict
-
-    def test_all(self):
-        ## Setup test and verify working of the test class
-
-        # check init
-        s = SeqDict()
-
-        # exercise setitem
-        s[10] = 'ten'
-        s[20] = 'twenty'
-        s[30] = 'thirty'
-
-        # exercise delitem
-        del s[20]
-        # check getitem and setitem
-        self.assertEqual(s[10], 'ten')
-        # check keys() and delitem
-        self.assertEqual(s.keys(), [10, 30])
-
-        ## Now, test the DictMixin methods one by one
-
-        # __contains__
-        self.assert_(10 in s)
-        self.assert_(20 not in s)
-
-        # __iter__
-        self.assertEqual([k for k in s], [10, 30])
-
-        # __len__
-        self.assertEqual(len(s), 2)
-
-        # iteritems
-        self.assertEqual(list(s.items()), [(10,'ten'), (30, 'thirty')])
-
-        # iterkeys
-        self.assertEqual(list(s.keys()), [10, 30])
-
-        # itervalues
-        self.assertEqual(list(s.values()), ['ten', 'thirty'])
-
-        # values
-        self.assertEqual(s.values(), ['ten', 'thirty'])
-
-        # items
-        self.assertEqual(s.items(), [(10,'ten'), (30, 'thirty')])
-
-        # get
-        self.assertEqual(s.get(10), 'ten')
-        self.assertEqual(s.get(15,'fifteen'), 'fifteen')
-        self.assertEqual(s.get(15), None)
-
-        # setdefault
-        self.assertEqual(s.setdefault(40, 'forty'), 'forty')
-        self.assertEqual(s.setdefault(10, 'null'), 'ten')
-        del s[40]
-
-        # pop
-        self.assertEqual(s.pop(10), 'ten')
-        self.assert_(10 not in s)
-        s[10] = 'ten'
-        self.assertEqual(s.pop("x", 1), 1)
-        s["x"] = 42
-        self.assertEqual(s.pop("x", 1), 42)
-
-        # popitem
-        k, v = s.popitem()
-        self.assert_(k not in s)
-        s[k] = v
-
-        # clear
-        s.clear()
-        self.assertEqual(len(s), 0)
-
-        # empty popitem
-        self.assertRaises(KeyError, s.popitem)
-
-        # update
-        s.update({10: 'ten', 20:'twenty'})
-        self.assertEqual(s[10], 'ten')
-        self.assertEqual(s[20], 'twenty')
-
-        # cmp
-        self.assertEqual(s, {10: 'ten', 20:'twenty'})
-        t = SeqDict()
-        t[20] = 'twenty'
-        t[10] = 'ten'
-        self.assertEqual(s, t)
 
 def test_main():
     test_support.run_unittest(
         UserDictTest,
-        UserDictMixinTest
     )
 
 if __name__ == "__main__":