diff -r d61d6cb128a0 bz2.txt
--- a/bz2.txt	Fri May 07 19:39:43 2010 -0400
+++ b/bz2.txt	Fri May 07 20:48:58 2010 -0400
@@ -21,7 +21,8 @@
 
 * :class:`BZ2File` class implements a complete file interface, including
   :meth:`~BZ2File.readline`, :meth:`~BZ2File.readlines`,
-  :meth:`~BZ2File.writelines`, :meth:`~BZ2File.seek`, etc;
+  :meth:`~BZ2File.writelines`, :meth:`~BZ2File.seek`, etc; but not
+  the :ref:`context-managers` functions.
 
 * :class:`BZ2File` class implements emulated :meth:`~BZ2File.seek` support;
 
@@ -38,6 +39,14 @@
 
 * Thread safety uses individual locking mechanism.
 
+.. note::
+    The :class:`BZ2File` class does not implement the :ref:`context-managers`
+    protocol. Specifically it does not define the :meth:`__enter__` and
+    :meth:`__exit__` methods required by the :keyword:`with` statement.
+    This minor omission has been corrected in Python 3 but was 
+    considered not sufficiently troublesome to warrant an entire 
+    Python 2 platform release.
+
 
 (De)compression of files
 ------------------------
diff -r b1cec42fb421 3.0.txt
--- a/3.0.txt	Fri May 07 20:35:00 2010 -0400
+++ b/3.0.txt	Fri May 07 20:51:30 2010 -0400
@@ -780,6 +780,10 @@
 
 * :meth:`__nonzero__` is now :meth:`__bool__`.
 
+* :meth:`__enter__` and :meth:`__exit__` context manager methods have
+  been added to the :class:`bz2.BZ2File` file object to support the
+  :keyword:`with` statement.
+
 Builtins
 --------