[issue13735] The protocol > 0 of cPickle does not given stable dictionary values

[Kay Hayen]

Kay Hayen <kayhayen at gmx.de> added the comment:

It seems that there is an extra "BINPUT 2", whatever it does. I am attaching a variant that does pickletools.dis on the 3 dumps.

Protocol 2 :
Dumping read const const stream '\x80\x02}q\x01U\x07modulesq\x02Ns.'
    0: \x80 PROTO      2
    2: }    EMPTY_DICT
    3: q    BINPUT     1
    5: U    SHORT_BINSTRING 'modules'
   14: q    BINPUT     2
   16: N    NONE
   17: s    SETITEM
   18: .    STOP
highest protocol among opcodes = 2
Dumping load const const stream '\x80\x02}q\x01U\x07modulesNs.'
    0: \x80 PROTO      2
    2: }    EMPTY_DICT
    3: q    BINPUT     1
    5: U    SHORT_BINSTRING 'modules'
   14: N    NONE
   15: s    SETITEM
   16: .    STOP
highest protocol among opcodes = 2
Dumping load const const stream '\x80\x02}q\x01U\x07modulesNs.'
    0: \x80 PROTO      2
    2: }    EMPTY_DICT
    3: q    BINPUT     1
    5: U    SHORT_BINSTRING 'modules'
   14: N    NONE
   15: s    SETITEM
   16: .    STOP
highest protocol among opcodes = 2

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Added file: http://bugs.python.org/file24180/stream.py

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<http://bugs.python.org/issue13735>
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