changeset:   93621:cd1ead4feddf
branch:      3.4
parent:      93619:816c15fe5812
user:        Serhiy Storchaka <storchaka@gmail.com>
date:        Thu Nov 27 17:45:44 2014 +0200
files:       Lib/collections/__init__.py Lib/test/test_collections.py
description:
Issue #22609: Revert changes in UserDict. They conflicted with existing tests.


diff -r 816c15fe5812 -r cd1ead4feddf Lib/collections/__init__.py
--- a/Lib/collections/__init__.py	Thu Nov 27 16:25:51 2014 +0200
+++ b/Lib/collections/__init__.py	Thu Nov 27 17:45:44 2014 +0200
@@ -893,14 +893,7 @@
 class UserDict(MutableMapping):
 
     # Start by filling-out the abstract methods
-    def __init__(*args, **kwargs):
-        if not args:
-            raise TypeError("descriptor '__init__' of 'UserDict' object "
-                            "needs an argument")
-        self, *args = args
-        if len(args) > 1:
-            raise TypeError('expected at most 1 arguments, got %d' % len(args))
-        dict = args[0] if args else None
+    def __init__(self, dict=None, **kwargs):
         self.data = {}
         if dict is not None:
             self.update(dict)
diff -r 816c15fe5812 -r cd1ead4feddf Lib/test/test_collections.py
--- a/Lib/test/test_collections.py	Thu Nov 27 16:25:51 2014 +0200
+++ b/Lib/test/test_collections.py	Thu Nov 27 17:45:44 2014 +0200
@@ -1571,24 +1571,6 @@
         d = self._empty_mapping()
         self.assertRaises(KeyError, d.popitem)
 
-class TestUserDict(unittest.TestCase):
-
-    def test_init(self):
-        self.assertEqual(list(UserDict(self=42).items()), [('self', 42)])
-        self.assertEqual(list(UserDict(dict=42).items()), [('dict', 42)])
-        self.assertEqual(list(UserDict(dict=None).items()), [('dict', None)])
-        self.assertRaises(TypeError, UserDict, 42)
-        self.assertRaises(TypeError, UserDict, (), ())
-        self.assertRaises(TypeError, UserDict.__init__)
-
-    def test_update(self):
-        d = UserDict()
-        d.update(self=42)
-        self.assertEqual(list(d.items()), [('self', 42)])
-        self.assertRaises(TypeError, UserDict().update, 42)
-        self.assertRaises(TypeError, UserDict().update, {}, {})
-        self.assertRaises(TypeError, UserDict.update)
-
 
 ################################################################################
 ### Run tests
@@ -1600,8 +1582,7 @@
     NamedTupleDocs = doctest.DocTestSuite(module=collections)
     test_classes = [TestNamedTuple, NamedTupleDocs, TestOneTrickPonyABCs,
                     TestCollectionABCs, TestCounter, TestChainMap,
-                    TestOrderedDict, GeneralMappingTests, SubclassMappingTests,
-                    TestUserDict,]
+                    TestOrderedDict, GeneralMappingTests, SubclassMappingTests]
     support.run_unittest(*test_classes)
     support.run_doctest(collections, verbose)