python-stdlib/collections-defaultdict: Add items() function.

This commit adds the `items()` functions to `collections.defaultdict`,
acting as a simple proxy to the underlying dictionary container.

This fixes #350.

Signed-off-by: Alessandro Gatti <a.gatti@frob.it>

Author: agatti

python-stdlib/collections-defaultdict/collections/defaultdict.py

@@ -33,3 +33,6 @@ def __missing__(self, key):
         if self.default_factory is None:
             raise KeyError(key)
         return self.default_factory()
+
+    def items(self):
+        return self.d.items()

python-stdlib/collections-defaultdict/manifest.py

@@ -1,4 +1,4 @@
-metadata(version="0.3.0")
+metadata(version="0.4.0")
 
 # Originally written by Paul Sokolovsky.
 

python-stdlib/collections-defaultdict/test_defaultdict.py

@@ -8,3 +8,11 @@
 assert d[1] == 42
 
 assert "foo" not in d
+
+d = defaultdict.defaultdict(list)
+for k, v in [('a', 1), ('b', 2), ('c', 3), ('a', 4), ('b', 5), ('c', 6)]:
+    d[k].append(v)
+i = list(sorted(d.items()))
+assert i[0] == ('a', [1, 4])
+assert i[1] == ('b', [2, 5])
+assert i[2] == ('c', [3, 6])