Links

• pickle.py (3.3)
• pickle.py (2.7)
• PEP 307: Extensions to the pickle protocol
• The pickle protocol
• pickletools module
  • pickletools.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.
• Pickling your Objects
• SO: Unpickling new-style with kwargs not possible?

Notes

• You may override Unpickler::find_class(self, module, name).
• __getnewargs__ won't be called for pickle protocol < 2.