diff --git a/Lib/json/__init__.py b/Lib/json/__init__.py
index 6a18518..5d8cb19 100644
--- a/Lib/json/__init__.py
+++ b/Lib/json/__init__.py
@@ -125,14 +125,12 @@
     ``.write()``-supporting file-like object).
 
     If ``skipkeys`` is true then ``dict`` keys that are not basic types
-    (``str``, ``unicode``, ``int``, ``float``, ``bool``, ``None``) will be
-    skipped instead of raising a ``TypeError``.
+    (``str``, ``int``, ``float``, ``bool``, ``None``) will be skipped
+    instead of raising a ``TypeError``.
 
-    If ``ensure_ascii`` is false, then the some chunks written to ``fp``
-    may be ``unicode`` instances, subject to normal Python ``str`` to
-    ``unicode`` coercion rules. Unless ``fp.write()`` explicitly
-    understands ``unicode`` (as in ``codecs.getwriter()``) this is likely
-    to cause an error.
+    If ``ensure_ascii`` is false, then the strings written to ``fp`` can
+    contain non-ASCII characters if they appear in strings contained in
+    ``obj``. Otherwise, all such characters are escaped in JSON strings.
 
     If ``check_circular`` is false, then the circular reference check
     for container types will be skipped and a circular reference will
@@ -185,12 +183,12 @@
     """Serialize ``obj`` to a JSON formatted ``str``.
 
     If ``skipkeys`` is false then ``dict`` keys that are not basic types
-    (``str``, ``unicode``, ``int``, ``float``, ``bool``, ``None``) will be
-    skipped instead of raising a ``TypeError``.
+    (``str``, ``int``, ``float``, ``bool``, ``None``) will be skipped
+    instead of raising a ``TypeError``.
 
-    If ``ensure_ascii`` is false, then the return value will be a
-    ``unicode`` instance subject to normal Python ``str`` to ``unicode``
-    coercion rules instead of being escaped to an ASCII ``str``.
+    If ``ensure_ascii`` is false, then the return value can contain non-ASCII
+    characters if they appear in strings contained in ``obj``. Otherwise, all
+    such characters are escaped in JSON strings.
 
     If ``check_circular`` is false, then the circular reference check
     for container types will be skipped and a circular reference will
diff --git a/Lib/json/decoder.py b/Lib/json/decoder.py
index 475b390..3e7405b 100644
--- a/Lib/json/decoder.py
+++ b/Lib/json/decoder.py
@@ -263,9 +263,9 @@
     +---------------+-------------------+
     | array         | list              |
     +---------------+-------------------+
-    | string        | unicode           |
+    | string        | str               |
     +---------------+-------------------+
-    | number (int)  | int, long         |
+    | number (int)  | int               |
     +---------------+-------------------+
     | number (real) | float             |
     +---------------+-------------------+
@@ -318,8 +318,8 @@
 
 
     def decode(self, s, _w=WHITESPACE.match):
-        """Return the Python representation of ``s`` (a ``str`` or ``unicode``
-        instance containing a JSON document)
+        """Return the Python representation of ``s`` (a ``str`` instance
+        containing a JSON document).
 
         """
         obj, end = self.raw_decode(s, idx=_w(s, 0).end())
@@ -329,8 +329,8 @@
         return obj
 
     def raw_decode(self, s, idx=0):
-        """Decode a JSON document from ``s`` (a ``str`` or ``unicode``
-        beginning with a JSON document) and return a 2-tuple of the Python
+        """Decode a JSON document from ``s`` (a ``str`` beginning with
+        a JSON document) and return a 2-tuple of the Python
         representation and the index in ``s`` where the document ended.
 
         This can be used to decode a JSON document from a string that may
diff --git a/Lib/json/encoder.py b/Lib/json/encoder.py
index d068e72..1335985 100644
--- a/Lib/json/encoder.py
+++ b/Lib/json/encoder.py
@@ -77,9 +77,9 @@
     +-------------------+---------------+
     | list, tuple       | array         |
     +-------------------+---------------+
-    | str, unicode      | string        |
+    | str               | string        |
     +-------------------+---------------+
-    | int, long, float  | number        |
+    | int, float        | number        |
     +-------------------+---------------+
     | True              | true          |
     +-------------------+---------------+
@@ -102,12 +102,12 @@
         """Constructor for JSONEncoder, with sensible defaults.
 
         If skipkeys is false, then it is a TypeError to attempt
-        encoding of keys that are not str, int, long, float or None.  If
+        encoding of keys that are not str, int, float or None.  If
         skipkeys is True, such items are simply skipped.
 
         If ensure_ascii is true, the output is guaranteed to be str
-        objects with all incoming unicode characters escaped.  If
-        ensure_ascii is false, the output will be unicode object.
+        objects with all incoming non-ASCII characters escaped.  If
+        ensure_ascii is false, the output can contain non-ASCII characters.
 
         If check_circular is true, then lists, dicts, and custom encoded
         objects will be checked for circular references during encoding to