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Kirill Smelkov
Zope
Commits
7afeb3d5
Commit
7afeb3d5
authored
Mar 23, 1999
by
Jim Fulton
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7afeb3d5
##############################################################################
#
# Zope Public License (ZPL) Version 1.0
# -------------------------------------
#
# Copyright (c) Digital Creations. All rights reserved.
#
# This license has been certified as Open Source(tm).
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# 1. Redistributions in source code must retain the above copyright
# notice, this list of conditions, and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions, and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
#
# 3. Digital Creations requests that attribution be given to Zope
# in any manner possible. Zope includes a "Powered by Zope"
# button that is installed by default. While it is not a license
# violation to remove this button, it is requested that the
# attribution remain. A significant investment has been put
# into Zope, and this effort will continue if the Zope community
# continues to grow. This is one way to assure that growth.
#
# 4. All advertising materials and documentation mentioning
# features derived from or use of this software must display
# the following acknowledgement:
#
# "This product includes software developed by Digital Creations
# for use in the Z Object Publishing Environment
# (http://www.zope.org/)."
#
# In the event that the product being advertised includes an
# intact Zope distribution (with copyright and license included)
# then this clause is waived.
#
# 5. Names associated with Zope or Digital Creations must not be used to
# endorse or promote products derived from this software without
# prior written permission from Digital Creations.
#
# 6. Modified redistributions of any form whatsoever must retain
# the following acknowledgment:
#
# "This product includes software developed by Digital Creations
# for use in the Z Object Publishing Environment
# (http://www.zope.org/)."
#
# Intact (re-)distributions of any official Zope release do not
# require an external acknowledgement.
#
# 7. Modifications are encouraged but must be packaged separately as
# patches to official Zope releases. Distributions that do not
# clearly separate the patches from the original work must be clearly
# labeled as unofficial distributions. Modifications which do not
# carry the name Zope may be packaged in any form, as long as they
# conform to all of the clauses above.
#
#
# Disclaimer
#
# THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS ``AS IS'' AND ANY
# EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DIGITAL CREATIONS OR ITS
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
#
# This software consists of contributions made by Digital Creations and
# many individuals on behalf of Digital Creations. Specific
# attributions are listed in the accompanying credits file.
#
##############################################################################
"""Provide conversion between Python pickles and XML
"""
__version__
=
"1.9"
# Code version
from
pickle
import
*
from
string
import
replace
import
struct
class
Global
:
def
__init__
(
self
,
module
,
name
):
self
.
module
=
module
self
.
name
=
name
def
__str__
(
self
,
indent
=
0
):
if
hasattr
(
self
,
'id'
):
id
=
' id="%s"'
%
self
.
id
else
:
id
=
''
name
=
string
.
lower
(
self
.
__class__
.
__name__
)
return
'%s<%s%s name="%s" module="%s"/>
\
n
'
%
(
' '
*
indent
,
name
,
id
,
self
.
name
,
self
.
module
)
class
Scalar
:
def
__init__
(
self
,
v
):
self
.
_v
=
v
def
value
(
self
):
return
self
.
_v
def
__str__
(
self
,
indent
=
0
):
if
hasattr
(
self
,
'id'
):
id
=
' id="%s"'
%
self
.
id
else
:
id
=
''
name
=
string
.
lower
(
self
.
__class__
.
__name__
)
return
'%s<%s%s>%s</%s>
\
n
'
%
(
' '
*
indent
,
name
,
id
,
self
.
value
(),
name
)
def
xmlstr
(
v
):
v
=
`v`
if
v
[:
1
]
==
'
\
'
'
:
v
=
string
.
replace
(
v
,
'"'
,
'
\
\
"'
)
v
=
replace
(
v
,
'%'
,
'
\
\
045'
)
v
=
replace
(
v
,
'&'
,
'
\
\
046'
)
return
v
[
1
:
-
1
]
class
Int
(
Scalar
):
pass
class
Long
(
Scalar
):
def
value
(
self
):
return
str
(
self
.
_v
)[:
-
1
]
class
Float
(
Scalar
):
pass
class
String
(
Scalar
):
def
value
(
self
):
return
xmlstr
(
self
.
_v
)
class
Wrapper
:
def
__init__
(
self
,
v
):
self
.
_v
=
v
def
value
(
self
):
return
self
.
_v
def
__str__
(
self
,
indent
=
0
):
if
hasattr
(
self
,
'id'
):
id
=
' id="%s"'
%
self
.
id
else
:
id
=
''
name
=
string
.
lower
(
self
.
__class__
.
__name__
)
v
=
self
.
_v
i
=
' '
*
indent
if
isinstance
(
v
,
Scalar
):
return
'%s<%s%s>%s</%s>
\
n
'
%
(
i
,
name
,
id
,
str
(
v
)[:
-
1
],
name
)
else
:
v
=
v
.
__str__
(
indent
+
2
)
return
'%s<%s%s>
\
n
%s%s</%s>
\
n
'
%
(
i
,
name
,
id
,
v
,
i
,
name
)
class
Collection
:
def
__str__
(
self
,
indent
=
0
):
if
hasattr
(
self
,
'id'
):
id
=
' id="%s"'
%
self
.
id
else
:
id
=
''
name
=
string
.
lower
(
self
.
__class__
.
__name__
)
i
=
' '
*
indent
if
self
:
return
'%s<%s%s>
\
n
%s%s</%s>
\
n
'
%
(
i
,
name
,
id
,
self
.
value
(
indent
+
2
),
i
,
name
)
else
:
return
'%s<%s%s/>
\
n
'
%
(
i
,
name
,
id
)
class
Key
(
Wrapper
):
pass
class
Value
(
Wrapper
):
pass
class
Dictionary
(
Collection
):
def
__init__
(
self
):
self
.
_d
=
{}
def
__len__
(
self
):
return
len
(
self
.
_d
)
def
__setitem__
(
self
,
k
,
v
):
self
.
_d
[
k
]
=
v
def
value
(
self
,
indent
):
return
string
.
join
(
map
(
lambda
i
,
ind
=
' '
*
indent
,
indent
=
indent
+
4
:
'%s<item>
\
n
'
'%s'
'%s'
'%s</item>
\
n
'
%
(
ind
,
Key
(
i
[
0
]).
__str__
(
indent
),
Value
(
i
[
1
]).
__str__
(
indent
),
ind
),
self
.
_d
.
items
()
),
''
)
class
Sequence
(
Collection
):
def
__init__
(
self
,
v
=
None
):
if
not
v
:
v
=
[]
self
.
_subs
=
v
def
__len__
(
self
):
return
len
(
self
.
_subs
)
def
append
(
self
,
v
):
self
.
_subs
.
append
(
v
)
def
value
(
self
,
indent
):
return
string
.
join
(
map
(
lambda
v
,
indent
=
indent
:
v
.
__str__
(
indent
),
self
.
_subs
),
''
)
class
List
(
Sequence
):
pass
class
Tuple
(
Sequence
):
pass
class
Klass
(
Wrapper
):
pass
class
State
(
Wrapper
):
pass
class
Pickle
(
Wrapper
):
pass
class
Persistent
(
Wrapper
):
pass
class
none
:
def
__str__
(
self
,
indent
=
0
):
return
' '
*
indent
+
'<none/>
\
n
'
none
=
none
()
class
Reference
(
Scalar
):
def
__init__
(
self
,
v
):
self
.
_v
=
v
def
__str__
(
self
,
indent
=
0
):
v
=
self
.
_v
name
=
string
.
lower
(
self
.
__class__
.
__name__
)
return
'%s<%s id="%s"/>
\
n
'
%
(
' '
*
indent
,
name
,
v
)
Get
=
Reference
class
Object
(
Sequence
):
def
__init__
(
self
,
klass
,
args
):
self
.
_subs
=
[
Klass
(
klass
),
args
]
def
__setstate__
(
self
,
v
):
self
.
append
(
State
(
v
))
class
ToXMLUnpickler
(
Unpickler
):
def
load
(
self
):
return
Pickle
(
Unpickler
.
load
(
self
))
dispatch
=
{}
dispatch
.
update
(
Unpickler
.
dispatch
)
def
persistent_load
(
self
,
v
):
return
Persistent
(
v
)
def
load_persid
(
self
):
pid
=
self
.
readline
()[:
-
1
]
self
.
append
(
self
.
persistent_load
(
String
(
pid
)))
dispatch
[
PERSID
]
=
load_persid
def
load_none
(
self
):
self
.
append
(
none
)
dispatch
[
NONE
]
=
load_none
def
load_int
(
self
):
self
.
append
(
Int
(
string
.
atoi
(
self
.
readline
()[:
-
1
])))
dispatch
[
INT
]
=
load_int
def
load_binint
(
self
):
self
.
append
(
Int
(
mloads
(
'i'
+
self
.
read
(
4
))))
dispatch
[
BININT
]
=
load_binint
def
load_binint1
(
self
):
self
.
append
(
Int
(
mloads
(
'i'
+
self
.
read
(
1
)
+
'
\
000
\
000
\
000
'
)))
dispatch
[
BININT1
]
=
load_binint1
def
load_binint2
(
self
):
self
.
append
(
Int
(
mloads
(
'i'
+
self
.
read
(
2
)
+
'
\
000
\
000
'
)))
dispatch
[
BININT2
]
=
load_binint2
def
load_long
(
self
):
self
.
append
(
Long
(
string
.
atol
(
self
.
readline
()[:
-
1
],
0
)))
dispatch
[
LONG
]
=
load_long
def
load_float
(
self
):
self
.
append
(
Float
(
string
.
atof
(
self
.
readline
()[:
-
1
])))
dispatch
[
FLOAT
]
=
load_float
def
load_string
(
self
):
self
.
append
(
String
(
eval
(
self
.
readline
()[:
-
1
],
{
'__builtins__'
:
{}})))
# Let's be careful
dispatch
[
STRING
]
=
load_string
def
load_binstring
(
self
):
len
=
mloads
(
'i'
+
self
.
read
(
4
))
self
.
append
(
String
(
self
.
read
(
len
)))
dispatch
[
BINSTRING
]
=
load_binstring
def
load_short_binstring
(
self
):
len
=
mloads
(
'i'
+
self
.
read
(
1
)
+
'
\
000
\
000
\
000
'
)
self
.
append
(
String
(
self
.
read
(
len
)))
dispatch
[
SHORT_BINSTRING
]
=
load_short_binstring
def
load_tuple
(
self
):
k
=
self
.
marker
()
self
.
stack
[
k
:]
=
[
Tuple
(
self
.
stack
[
k
+
1
:])]
dispatch
[
TUPLE
]
=
load_tuple
def
load_empty_tuple
(
self
):
self
.
stack
.
append
(
Tuple
())
dispatch
[
EMPTY_TUPLE
]
=
load_empty_tuple
def
load_empty_list
(
self
):
self
.
stack
.
append
(
List
())
dispatch
[
EMPTY_LIST
]
=
load_empty_list
def
load_empty_dictionary
(
self
):
self
.
stack
.
append
(
Dictionary
())
dispatch
[
EMPTY_DICT
]
=
load_empty_dictionary
def
load_list
(
self
):
k
=
self
.
marker
()
self
.
stack
[
k
:]
=
[
List
(
self
.
stack
[
k
+
1
:])]
dispatch
[
LIST
]
=
load_list
def
load_dict
(
self
):
k
=
self
.
marker
()
d
=
Dictionary
()
items
=
self
.
stack
[
k
+
1
:]
for
i
in
range
(
0
,
len
(
items
),
2
):
key
=
items
[
i
]
value
=
items
[
i
+
1
]
d
[
key
]
=
value
self
.
stack
[
k
:]
=
[
d
]
dispatch
[
DICT
]
=
load_dict
def
load_inst
(
self
):
k
=
self
.
marker
()
args
=
Tuple
(
self
.
stack
[
k
+
1
:])
del
self
.
stack
[
k
:]
module
=
self
.
readline
()[:
-
1
]
name
=
self
.
readline
()[:
-
1
]
klass
=
self
.
find_class
(
module
,
name
)
value
=
Object
(
Global
(
module
,
klass
),
args
)
self
.
append
(
value
)
dispatch
[
INST
]
=
load_inst
def
load_obj
(
self
):
stack
=
self
.
stack
k
=
self
.
marker
()
klass
=
stack
[
k
+
1
]
del
stack
[
k
+
1
]
args
=
Tuple
(
stack
[
k
+
1
:])
del
stack
[
k
:]
value
=
Object
(
klass
,
args
)
self
.
append
(
value
)
dispatch
[
OBJ
]
=
load_obj
def
load_global
(
self
):
module
=
self
.
readline
()[:
-
1
]
name
=
self
.
readline
()[:
-
1
]
self
.
append
(
Global
(
module
,
name
))
dispatch
[
GLOBAL
]
=
load_global
def
load_reduce
(
self
):
stack
=
self
.
stack
callable
=
stack
[
-
2
]
arg_tup
=
stack
[
-
1
]
del
stack
[
-
2
:]
value
=
Object
(
callable
,
arg_tup
)
self
.
append
(
value
)
dispatch
[
REDUCE
]
=
load_reduce
idprefix
=
''
def
load_get
(
self
):
self
.
append
(
Get
(
self
.
idprefix
+
self
.
readline
()[:
-
1
]))
dispatch
[
GET
]
=
load_get
def
load_binget
(
self
):
i
=
mloads
(
'i'
+
self
.
read
(
1
)
+
'
\
000
\
000
\
000
'
)
self
.
append
(
Get
(
self
.
idprefix
+
`i`
))
dispatch
[
BINGET
]
=
load_binget
def
load_long_binget
(
self
):
i
=
mloads
(
'i'
+
self
.
read
(
4
))
self
.
append
(
Get
(
self
.
idprefix
+
`i`
))
dispatch
[
LONG_BINGET
]
=
load_long_binget
def
load_put
(
self
):
self
.
stack
[
-
1
].
id
=
self
.
idprefix
+
self
.
readline
()[:
-
1
]
dispatch
[
PUT
]
=
load_put
def
load_binput
(
self
):
i
=
mloads
(
'i'
+
self
.
read
(
1
)
+
'
\
000
\
000
\
000
'
)
self
.
stack
[
-
1
].
id
=
self
.
idprefix
+
`i`
dispatch
[
BINPUT
]
=
load_binput
def
load_long_binput
(
self
):
i
=
mloads
(
'i'
+
self
.
read
(
4
))
self
.
stack
[
-
1
].
id
=
self
.
idprefix
+
`i`
dispatch
[
LONG_BINPUT
]
=
load_long_binput
def
ToXMLload
(
file
):
return
ToXMLUnpickler
(
file
).
load
()
def
ToXMLloads
(
str
):
file
=
StringIO
(
str
)
return
ToXMLUnpickler
(
file
).
load
()
# The rest is used for testing only
class
C
:
def
__cmp__
(
self
,
other
):
return
cmp
(
self
.
__dict__
,
other
.
__dict__
)
def
test
():
fn
=
'out'
c
=
C
()
c
.
foo
=
1
c
.
bar
=
2
x
=
[
0
,
1
,
2
,
3
]
y
=
(
'abc'
,
'abc'
,
c
,
c
)
x
.
append
(
y
)
x
.
append
(
y
)
x
.
append
(
5
)
x
.
append
(
None
)
f
=
open
(
fn
,
'w'
)
F
=
Pickler
(
f
,
1
)
F
.
dump
(
x
)
f
.
close
()
f
=
open
(
fn
,
'r'
)
U
=
ToXMLUnpickler
(
f
)
U
.
idprefix
=
'42.'
x2
=
U
.
load
()
print
x
print
x2
if
__name__
==
'__main__'
:
test
()
"""Provide conversion between Python pickles and XML
"""
__version__
=
"1.9"
# Code version
from
pickle
import
*
from
string
import
replace
class
Global
:
def
__init__
(
self
,
module
,
name
):
self
.
module
=
module
self
.
name
=
name
def
__str__
(
self
,
indent
=
0
):
if
hasattr
(
self
,
'id'
):
id
=
' id="%s"'
%
self
.
id
else
:
id
=
''
name
=
string
.
lower
(
self
.
__class__
.
__name__
)
return
'%s<%s%s name="%s" module="%s"/>
\
n
'
%
(
' '
*
indent
,
name
,
id
,
self
.
name
,
self
.
module
)
class
Scalar
:
def
__init__
(
self
,
v
):
self
.
_v
=
v
def
value
(
self
):
return
self
.
_v
def
__str__
(
self
,
indent
=
0
):
if
hasattr
(
self
,
'id'
):
id
=
' id="%s"'
%
self
.
id
else
:
id
=
''
name
=
string
.
lower
(
self
.
__class__
.
__name__
)
return
'%s<%s%s>%s</%s>
\
n
'
%
(
' '
*
indent
,
name
,
id
,
self
.
value
(),
name
)
def
xmlstr
(
v
):
v
=
`v`
if
v
[:
1
]
==
'
\
'
'
:
v
=
string
.
replace
(
v
,
'"'
,
'
\
\
"'
)
v
=
replace
(
v
,
'%'
,
'
\
\
045'
)
v
=
replace
(
v
,
'&'
,
'
\
\
046'
)
return
v
[
1
:
-
1
]
class
Int
(
Scalar
):
pass
class
Long
(
Scalar
):
def
value
(
self
):
return
str
(
self
.
_v
)[:
-
1
]
class
Float
(
Scalar
):
pass
class
String
(
Scalar
):
def
value
(
self
):
return
xmlstr
(
self
.
_v
)
class
Wrapper
:
def
__init__
(
self
,
v
):
self
.
_v
=
v
def
value
(
self
):
return
self
.
_v
def
__str__
(
self
,
indent
=
0
):
if
hasattr
(
self
,
'id'
):
id
=
' id="%s"'
%
self
.
id
else
:
id
=
''
name
=
string
.
lower
(
self
.
__class__
.
__name__
)
v
=
self
.
_v
i
=
' '
*
indent
if
isinstance
(
v
,
Scalar
):
return
'%s<%s%s>%s</%s>
\
n
'
%
(
i
,
name
,
id
,
str
(
v
)[:
-
1
],
name
)
else
:
v
=
v
.
__str__
(
indent
+
2
)
return
'%s<%s%s>
\
n
%s%s</%s>
\
n
'
%
(
i
,
name
,
id
,
v
,
i
,
name
)
class
Collection
:
def
__str__
(
self
,
indent
=
0
):
if
hasattr
(
self
,
'id'
):
id
=
' id="%s"'
%
self
.
id
else
:
id
=
''
name
=
string
.
lower
(
self
.
__class__
.
__name__
)
i
=
' '
*
indent
if
self
:
return
'%s<%s%s>
\
n
%s%s</%s>
\
n
'
%
(
i
,
name
,
id
,
self
.
value
(
indent
+
2
),
i
,
name
)
else
:
return
'%s<%s%s/>
\
n
'
%
(
i
,
name
,
id
)
class
Key
(
Wrapper
):
pass
class
Value
(
Wrapper
):
pass
class
Dictionary
(
Collection
):
def
__init__
(
self
):
self
.
_d
=
[]
def
__len__
(
self
):
return
len
(
self
.
_d
)
def
__setitem__
(
self
,
k
,
v
):
self
.
_d
.
append
((
k
,
v
))
def
value
(
self
,
indent
):
return
string
.
join
(
map
(
lambda
i
,
ind
=
' '
*
indent
,
indent
=
indent
+
4
:
'%s<item>
\
n
'
'%s'
'%s'
'%s</item>
\
n
'
%
(
ind
,
Key
(
i
[
0
]).
__str__
(
indent
),
Value
(
i
[
1
]).
__str__
(
indent
),
ind
),
self
.
_d
),
''
)
class
Sequence
(
Collection
):
def
__init__
(
self
,
v
=
None
):
if
not
v
:
v
=
[]
self
.
_subs
=
v
def
__len__
(
self
):
return
len
(
self
.
_subs
)
def
append
(
self
,
v
):
self
.
_subs
.
append
(
v
)
def
value
(
self
,
indent
):
return
string
.
join
(
map
(
lambda
v
,
indent
=
indent
:
v
.
__str__
(
indent
),
self
.
_subs
),
''
)
class
List
(
Sequence
):
pass
class
Tuple
(
Sequence
):
pass
class
Klass
(
Wrapper
):
pass
class
State
(
Wrapper
):
pass
class
Pickle
(
Wrapper
):
pass
class
Persistent
(
Wrapper
):
pass
class
none
:
def
__str__
(
self
,
indent
=
0
):
return
' '
*
indent
+
'<none/>
\
n
'
none
=
none
()
class
Reference
(
Scalar
):
def
__init__
(
self
,
v
):
self
.
_v
=
v
def
__str__
(
self
,
indent
=
0
):
v
=
self
.
_v
name
=
string
.
lower
(
self
.
__class__
.
__name__
)
return
'%s<%s id="%s"/>
\
n
'
%
(
' '
*
indent
,
name
,
v
)
Get
=
Reference
class
Object
(
Sequence
):
def
__init__
(
self
,
klass
,
args
):
self
.
_subs
=
[
Klass
(
klass
),
args
]
def
__setstate__
(
self
,
v
):
self
.
append
(
State
(
v
))
class
ToXMLUnpickler
(
Unpickler
):
def
load
(
self
):
return
Pickle
(
Unpickler
.
load
(
self
))
dispatch
=
{}
dispatch
.
update
(
Unpickler
.
dispatch
)
def
persistent_load
(
self
,
v
):
return
Persistent
(
v
)
def
load_persid
(
self
):
pid
=
self
.
readline
()[:
-
1
]
self
.
append
(
self
.
persistent_load
(
String
(
pid
)))
dispatch
[
PERSID
]
=
load_persid
def
load_none
(
self
):
self
.
append
(
none
)
dispatch
[
NONE
]
=
load_none
def
load_int
(
self
):
self
.
append
(
Int
(
string
.
atoi
(
self
.
readline
()[:
-
1
])))
dispatch
[
INT
]
=
load_int
def
load_binint
(
self
):
self
.
append
(
Int
(
mloads
(
'i'
+
self
.
read
(
4
))))
dispatch
[
BININT
]
=
load_binint
def
load_binint1
(
self
):
self
.
append
(
Int
(
mloads
(
'i'
+
self
.
read
(
1
)
+
'
\
000
\
000
\
000
'
)))
dispatch
[
BININT1
]
=
load_binint1
def
load_binint2
(
self
):
self
.
append
(
Int
(
mloads
(
'i'
+
self
.
read
(
2
)
+
'
\
000
\
000
'
)))
dispatch
[
BININT2
]
=
load_binint2
def
load_long
(
self
):
self
.
append
(
Long
(
string
.
atol
(
self
.
readline
()[:
-
1
],
0
)))
dispatch
[
LONG
]
=
load_long
def
load_float
(
self
):
self
.
append
(
Float
(
string
.
atof
(
self
.
readline
()[:
-
1
])))
dispatch
[
FLOAT
]
=
load_float
def
load_binfloat
(
self
,
unpack
=
struct
.
unpack
):
self
.
append
(
Float
(
unpack
(
'>d'
,
self
.
read
(
8
))[
0
]))
dispatch
[
'G'
]
=
load_binfloat
def
load_string
(
self
):
self
.
append
(
String
(
eval
(
self
.
readline
()[:
-
1
],
{
'__builtins__'
:
{}})))
# Let's be careful
dispatch
[
STRING
]
=
load_string
def
load_binstring
(
self
):
len
=
mloads
(
'i'
+
self
.
read
(
4
))
self
.
append
(
String
(
self
.
read
(
len
)))
dispatch
[
BINSTRING
]
=
load_binstring
def
load_short_binstring
(
self
):
len
=
mloads
(
'i'
+
self
.
read
(
1
)
+
'
\
000
\
000
\
000
'
)
self
.
append
(
String
(
self
.
read
(
len
)))
dispatch
[
SHORT_BINSTRING
]
=
load_short_binstring
def
load_tuple
(
self
):
k
=
self
.
marker
()
self
.
stack
[
k
:]
=
[
Tuple
(
self
.
stack
[
k
+
1
:])]
dispatch
[
TUPLE
]
=
load_tuple
def
load_empty_tuple
(
self
):
self
.
stack
.
append
(
Tuple
())
dispatch
[
EMPTY_TUPLE
]
=
load_empty_tuple
def
load_empty_list
(
self
):
self
.
stack
.
append
(
List
())
dispatch
[
EMPTY_LIST
]
=
load_empty_list
def
load_empty_dictionary
(
self
):
self
.
stack
.
append
(
Dictionary
())
dispatch
[
EMPTY_DICT
]
=
load_empty_dictionary
def
load_list
(
self
):
k
=
self
.
marker
()
self
.
stack
[
k
:]
=
[
List
(
self
.
stack
[
k
+
1
:])]
dispatch
[
LIST
]
=
load_list
def
load_dict
(
self
):
k
=
self
.
marker
()
d
=
Dictionary
()
items
=
self
.
stack
[
k
+
1
:]
for
i
in
range
(
0
,
len
(
items
),
2
):
key
=
items
[
i
]
value
=
items
[
i
+
1
]
d
[
key
]
=
value
self
.
stack
[
k
:]
=
[
d
]
dispatch
[
DICT
]
=
load_dict
def
load_inst
(
self
):
k
=
self
.
marker
()
args
=
Tuple
(
self
.
stack
[
k
+
1
:])
del
self
.
stack
[
k
:]
module
=
self
.
readline
()[:
-
1
]
name
=
self
.
readline
()[:
-
1
]
klass
=
self
.
find_class
(
module
,
name
)
value
=
Object
(
Global
(
module
,
klass
),
args
)
self
.
append
(
value
)
dispatch
[
INST
]
=
load_inst
def
load_obj
(
self
):
stack
=
self
.
stack
k
=
self
.
marker
()
klass
=
stack
[
k
+
1
]
del
stack
[
k
+
1
]
args
=
Tuple
(
stack
[
k
+
1
:])
del
stack
[
k
:]
value
=
Object
(
klass
,
args
)
self
.
append
(
value
)
dispatch
[
OBJ
]
=
load_obj
def
load_global
(
self
):
module
=
self
.
readline
()[:
-
1
]
name
=
self
.
readline
()[:
-
1
]
self
.
append
(
Global
(
module
,
name
))
dispatch
[
GLOBAL
]
=
load_global
def
load_reduce
(
self
):
stack
=
self
.
stack
callable
=
stack
[
-
2
]
arg_tup
=
stack
[
-
1
]
del
stack
[
-
2
:]
value
=
Object
(
callable
,
arg_tup
)
self
.
append
(
value
)
dispatch
[
REDUCE
]
=
load_reduce
idprefix
=
''
def
load_get
(
self
):
self
.
append
(
Get
(
self
.
idprefix
+
self
.
readline
()[:
-
1
]))
dispatch
[
GET
]
=
load_get
def
load_binget
(
self
):
i
=
mloads
(
'i'
+
self
.
read
(
1
)
+
'
\
000
\
000
\
000
'
)
self
.
append
(
Get
(
self
.
idprefix
+
`i`
))
dispatch
[
BINGET
]
=
load_binget
def
load_long_binget
(
self
):
i
=
mloads
(
'i'
+
self
.
read
(
4
))
self
.
append
(
Get
(
self
.
idprefix
+
`i`
))
dispatch
[
LONG_BINGET
]
=
load_long_binget
def
load_put
(
self
):
self
.
stack
[
-
1
].
id
=
self
.
idprefix
+
self
.
readline
()[:
-
1
]
dispatch
[
PUT
]
=
load_put
def
load_binput
(
self
):
i
=
mloads
(
'i'
+
self
.
read
(
1
)
+
'
\
000
\
000
\
000
'
)
self
.
stack
[
-
1
].
id
=
self
.
idprefix
+
`i`
dispatch
[
BINPUT
]
=
load_binput
def
load_long_binput
(
self
):
i
=
mloads
(
'i'
+
self
.
read
(
4
))
self
.
stack
[
-
1
].
id
=
self
.
idprefix
+
`i`
dispatch
[
LONG_BINPUT
]
=
load_long_binput
def
ToXMLload
(
file
):
return
ToXMLUnpickler
(
file
).
load
()
def
ToXMLloads
(
str
):
file
=
StringIO
(
str
)
return
ToXMLUnpickler
(
file
).
load
()
# The rest is used for testing only
class
C
:
def
__cmp__
(
self
,
other
):
return
cmp
(
self
.
__dict__
,
other
.
__dict__
)
def
test
():
fn
=
'out'
c
=
C
()
c
.
foo
=
1
c
.
bar
=
2
x
=
[
0
,
1
,
2
,
3
]
y
=
(
'abc'
,
'abc'
,
c
,
c
)
x
.
append
(
y
)
x
.
append
(
y
)
x
.
append
(
5
)
x
.
append
(
None
)
f
=
open
(
fn
,
'w'
)
F
=
Pickler
(
f
,
1
)
F
.
dump
(
x
)
f
.
close
()
f
=
open
(
fn
,
'r'
)
U
=
ToXMLUnpickler
(
f
)
U
.
idprefix
=
'42.'
x2
=
U
.
load
()
print
x
print
x2
if
__name__
==
'__main__'
:
test
()
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