--- rest25/library/pickletools.rst	2008-12-19 16:58:07.000000000 +0900
+++ rest262/library/pickletools.rst	2009-04-05 05:02:09.000000000 +0900
@@ -20,18 +20,25 @@
 .. function:: dis(pickle[, out=None, memo=None, indentlevel=4])
 
    Outputs a symbolic disassembly of the pickle to the file-like object *out*,
    defaulting to ``sys.stdout``.  *pickle* can be a string or a file-like object.
    *memo* can be a Python dictionary that will be used as the pickle's memo; it can
    be used to perform disassemblies across multiple pickles created by the same
    pickler. Successive levels, indicated by ``MARK`` opcodes in the stream, are
    indented by *indentlevel* spaces.
 
 
 .. function:: genops(pickle)
 
-   Provides an iterator over all of the opcodes in a pickle, returning a sequence
-   of ``(opcode, arg, pos)`` triples. *opcode* is an instance of an
-   :class:`OpcodeInfo` class; *arg*  is the decoded value, as a Python object, of
-   the opcode's argument;  *pos* is the position at which this opcode is located.
+   Provides an :term:`iterator` over all of the opcodes in a pickle, returning a
+   sequence of ``(opcode, arg, pos)`` triples.  *opcode* is an instance of an
+   :class:`OpcodeInfo` class; *arg* is the decoded value, as a Python object, of
+   the opcode's argument; *pos* is the position at which this opcode is located.
    *pickle* can be a string or a file-like object.
 
+.. function:: optimize(picklestring)
+
+   Returns a new equivalent pickle string after eliminating unused ``PUT``
+   opcodes. The optimized pickle is shorter, takes less transmission time,
+   requires less storage space, and unpickles more efficiently.
+
+   .. versionadded:: 2.6
