Update of /cvsroot/python/python/dist/src/Lib
In directory sc8-pr-cvs1:/tmp/cvs-serv23572a/python/Lib
Modified Files:
pickle.py
Log Message:
Added a brief comment to each pickle opcode declaration.
Index: pickle.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/pickle.py,v
retrieving revision 1.73
retrieving revision 1.74
diff -C2 -d -r1.73 -r1.74
*** pickle.py 24 Jan 2003 19:29:52 -0000 1.73
--- pickle.py 27 Jan 2003 20:16:36 -0000 1.74
***************
*** 3,6 ****
--- 3,7 ----
See module cPickle for a (much) faster implementation.
See module copy_reg for a mechanism for registering custom picklers.
+ See module pickletools source for extensive comments.
Classes:
***************
*** 78,125 ****
UnicodeType = None
! MARK = '('
! STOP = '.'
! POP = '0'
! POP_MARK = '1'
! DUP = '2'
! FLOAT = 'F'
! INT = 'I'
! BININT = 'J'
! BININT1 = 'K'
! LONG = 'L'
! BININT2 = 'M'
! NONE = 'N'
! PERSID = 'P'
! BINPERSID = 'Q'
! REDUCE = 'R'
! STRING = 'S'
! BINSTRING = 'T'
! SHORT_BINSTRING = 'U'
! UNICODE = 'V'
! BINUNICODE = 'X'
! APPEND = 'a'
! BUILD = 'b'
! GLOBAL = 'c'
! DICT = 'd'
! EMPTY_DICT = '}'
! APPENDS = 'e'
! GET = 'g'
! BINGET = 'h'
! INST = 'i'
! LONG_BINGET = 'j'
! LIST = 'l'
! EMPTY_LIST = ']'
! OBJ = 'o'
! PUT = 'p'
! BINPUT = 'q'
! LONG_BINPUT = 'r'
! SETITEM = 's'
! TUPLE = 't'
! EMPTY_TUPLE = ')'
! SETITEMS = 'u'
! BINFLOAT = 'G'
! TRUE = 'I01\n'
! FALSE = 'I00\n'
--- 79,130 ----
UnicodeType = None
+ # Pickle opcodes. See pickletools.py for extensive docs. The listing
+ # here is in kind-of alphabetical order of 1-character pickle code.
+ # pickletools groups them by purpose.
! MARK = '(' # push special markobject on stack
! STOP = '.' # every pickle ends with STOP
! POP = '0' # discard topmost stack item
! POP_MARK = '1' # discard stack top through topmost markobject
! DUP = '2' # duplicate top stack item
! FLOAT = 'F' # push float object; decimal string argument
! INT = 'I' # push integer or bool; decimal string argument
! BININT = 'J' # push four-byte signed int
! BININT1 = 'K' # push 1-byte unsigned int
! LONG = 'L' # push long; decimal string argument
! BININT2 = 'M' # push 2-byte unsigned int
! NONE = 'N' # push None
! PERSID = 'P' # push persistent object; id is taken from string arg
! BINPERSID = 'Q' # " " " ; " " " " stack
! REDUCE = 'R' # apply callable to argtuple, both on stack
! STRING = 'S' # push string; NL-terminated string argument
! BINSTRING = 'T' # push string; counted binary string argument
! SHORT_BINSTRING = 'U' # " " ; " " " " < 256 bytes
! UNICODE = 'V' # push Unicode string; raw-unicode-escaped'd argument
! BINUNICODE = 'X' # " " " ; counted UTF-8 string argument
! APPEND = 'a' # append stack top to list below it
! BUILD = 'b' # call __setstate__ or __dict__.update()
! GLOBAL = 'c' # push self.find_class(modname, name); 2 string args
! DICT = 'd' # build a dict from stack items
! EMPTY_DICT = '}' # push empty dict
! APPENDS = 'e' # extend list on stack by topmost stack slice
! GET = 'g' # push item from memo on stack; index is string arg
! BINGET = 'h' # " " " " " " ; " " 1-byte arg
! INST = 'i' # build & push class instance
! LONG_BINGET = 'j' # push item from memo on stack; index is 4-byte arg
! LIST = 'l' # build list from topmost stack items
! EMPTY_LIST = ']' # push empty list
! OBJ = 'o' # build & push class instance
! PUT = 'p' # store stack top in memo; index is string arg
! BINPUT = 'q' # " " " " " ; " " 1-byte arg
! LONG_BINPUT = 'r' # " " " " " ; " " 4-byte arg
! SETITEM = 's' # add key+value pair to dict
! TUPLE = 't' # build tuple from topmost stack items
! EMPTY_TUPLE = ')' # push empty tuple
! SETITEMS = 'u' # modify dict by adding topmost key+value pairs
! BINFLOAT = 'G' # push float; arg is 8-byte float encoding
!
! TRUE = 'I01\n' # not an opcode; see INT docs in pickletools.py
! FALSE = 'I00\n' # not an opcode; see INT docs in pickletools.py
***************
*** 304,308 ****
raise PicklingError("__reduce__() must return callable as "
"first argument, not %s" % `acallable`)
!
save(acallable)
save(arg_tup)
--- 309,313 ----
raise PicklingError("__reduce__() must return callable as "
"first argument, not %s" % `acallable`)
!
save(acallable)
save(arg_tup)
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