Fix doc bug (cheat sheet: iteritems import) (issue #120)

Author: edschofield

docs/compatible_idioms.rst

@@ -533,7 +533,14 @@ Iterable dict items:
 .. code:: python
 
     # Python 2 and 3: option 2
-    from builtins import iteritems
+    from future.utils import viewitems
+    
+    for (key, value) in viewitems(heights):   # also behaves like a set
+        ...
+.. code:: python
+
+    # Python 2 and 3: option 3
+    from future.utils import iteritems
     # or
     from six import iteritems
     

docs/notebooks/Writing Python 2-3 compatible code.ipynb

@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:7fe04ffd8c478c4d6b7653aab35c47f3117c50ae383326dfeca599d53603d031"
+  "signature": "sha256:fa152cbedcb4d5d5c255d3456863fe07938d6196acf812a42c7c9ea3869c9f1b"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -1147,7 +1147,21 @@
      "collapsed": false,
      "input": [
       "# Python 2 and 3: option 2\n",
-      "from builtins import iteritems\n",
+      "from future.utils import viewitems\n",
+      "\n",
+      "for (key, value) in viewitems(heights):   # also behaves like a set\n",
+      "    ..."
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": []
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "# Python 2 and 3: option 3\n",
+      "from future.utils import iteritems\n",
       "# or\n",
       "from six import iteritems\n",
       "\n",