30.11 pickletools -- Tools for pickle developers.
New in version 2.3.
This module contains various constants relating to the intimate details of the pickle module, some lengthy comments about the implementation, and a few useful functions for analyzing pickled data. The contents of this module are useful for Python core developers who are working on the pickle and cPickle implementations; ordinary users of the pickle module probably won't find the pickletools module relevant.
-
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 byMARK
opcodes in the stream, are indented by indentlevel spaces.
-
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 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.