Your IP : 3.144.4.50
�
�� f # c @ sy d Z d d l Z d d l Z d d l m Z d d l Z Gd d � d e � Z e Z y d d l m
Z
Wn e k
r� d Z
Yn Xd d d g Z
d d � Z i Z Z d
d � Z xW e d � e e e e e e e e e e j e e � e j e j f D] Z e e e <q� We e d d � Z e d k r;e e e <n x9 d$ D]1 Z! e e e! d � Z e d k rBe e e <qBqBWd d � Z" x! e# e$ e% f D] Z e" e e <q�Wd d � Z& e
d k r�e& e e
<n [ d g d d � Z' i Z( Z d d � Z) e) e e d � <e) e e e � <e) e e <e) e e <e) e e <y e) e e* <Wn e+ k
rWYn Xe) e e <e) e e <y e) e e j, <Wn e- k
r�Yn Xe) e e <e) e e <e) e e j <e) e e j <e) e e j <d d � Z. e. e e# <d d � Z/ e/ e e <d d � Z0 e0 e e$ <e
d k r(e0 e e
<n d d � Z1 e1 e( e j2 <d d � Z3 d d d! � Z4 [ [ Gd" d# � d# � Z5 d S(% u� Generic (shallow and deep) copying operations.
Interface summary:
import copy
x = copy.copy(y) # make a shallow copy of y
x = copy.deepcopy(y) # make a deep copy of y
For module specific errors, copy.Error is raised.
The difference between shallow and deep copying is only relevant for
compound objects (objects that contain other objects, like lists or
class instances).
- A shallow copy constructs a new compound object and then (to the
extent possible) inserts *the same objects* into it that the
original contains.
- A deep copy constructs a new compound object and then, recursively,
inserts *copies* into it of the objects found in the original.
Two problems often exist with deep copy operations that don't exist
with shallow copy operations:
a) recursive objects (compound objects that, directly or indirectly,
contain a reference to themselves) may cause a recursive loop
b) because deep copy copies *everything* it may copy too much, e.g.
administrative data structures that should be shared even between
copies
Python's deep copy operation avoids these problems by:
a) keeping a table of objects already copied during the current
copying pass
b) letting user-defined classes override the copying operation or the
set of components copied
This version does not copy types like module, class, function, method,
nor stack trace, stack frame, nor file, socket, window, nor array, nor
any similar types.
Classes can use the same interfaces to control copying that they use
to control pickling: they can define methods called __getinitargs__(),
__getstate__() and __setstate__(). See the documentation for module
"pickle" for information on these methods.
i N( u dispatch_tablec B s | Ee Z d Z d S( u ErrorN( u __name__u
__module__u __qualname__( u
__locals__( ( u) /opt/alt/python33/lib64/python3.3/copy.pyu Error8 s u Error( u PyStringMapu copyu deepcopyc C s t | � } t j | � } | r+ | | � Sy t | t � } Wn t k
rX d } Yn X| ri t | � St | d d � } | r� | | � St j | � } | r� | | � } n[ t | d d � } | r� | d � } n4 t | d d � } | r� | � } n t
d | � � t | | d � S( ul Shallow copy operation on arbitrary Python objects.
See the module's __doc__ string for more info.
u __copy__u
__reduce_ex__i u
__reduce__u% un(shallow)copyable object of type %si FN( u typeu _copy_dispatchu getu
issubclassu TypeErroru Falseu _copy_immutableu getattru Noneu dispatch_tableu Erroru _reconstruct( u xu clsu copieru isscu reductoru rv( ( u) /opt/alt/python33/lib64/python3.3/copy.pyu copyC s0
c C s | S( N( ( u x( ( u) /opt/alt/python33/lib64/python3.3/copy.pyu _copy_immutablen s u _copy_immutableu CodeTypeu complexu unicodec C s t | � | � S( N( u type( u x( ( u) /opt/alt/python33/lib64/python3.3/copy.pyu _copy_with_constructor} s u _copy_with_constructorc C s
| j � S( N( u copy( u x( ( u) /opt/alt/python33/lib64/python3.3/copy.pyu _copy_with_copy_method� s u _copy_with_copy_methodc
C s� | d k r i } n t | � } | j | | � } | | k rC | St | � } t j | � } | rv | | | � } ny t | t � } Wn t k
r� d } Yn X| r� t | | � } n� t | d d � } | r� | | � } n� t j | � } | r| | � } n[ t | d d � } | r.| d � } n4 t | d d � } | rR| � } n t
d | � � t | | d | � } | | k r�| | | <t | | � n | S( ui Deep copy operation on arbitrary Python objects.
See the module's __doc__ string for more info.
i u __deepcopy__u
__reduce_ex__i u
__reduce__u" un(deep)copyable object of type %si N(
u Noneu idu getu typeu _deepcopy_dispatchu
issubclassu TypeErroru _deepcopy_atomicu getattru dispatch_tableu Erroru _reconstructu _keep_alive(
u xu memou _nilu du yu clsu copieru isscu reductoru rv( ( u) /opt/alt/python33/lib64/python3.3/copy.pyu deepcopy� sF
c C s | S( N( ( u xu memo( ( u) /opt/alt/python33/lib64/python3.3/copy.pyu _deepcopy_atomic� s u _deepcopy_atomicc C sA g } | | t | � <x$ | D] } | j t | | � � q W| S( N( u idu appendu deepcopy( u xu memou yu a( ( u) /opt/alt/python33/lib64/python3.3/copy.pyu _deepcopy_list� s
u _deepcopy_listc C s� g } x$ | D] } | j t | | � � q
Wy | t | � SWn t k
rS Yn XxD t t | � � D]* } | | | | k rg t | � } Pqg qg W| } | S( N( u appendu deepcopyu idu KeyErroru rangeu lenu tuple( u xu memou yu au i( ( u) /opt/alt/python33/lib64/python3.3/copy.pyu _deepcopy_tuple� s
u _deepcopy_tuplec C sS i } | | t | � <x6 | j � D]( \ } } t | | � | t | | � <q# W| S( N( u idu itemsu deepcopy( u xu memou yu keyu value( ( u) /opt/alt/python33/lib64/python3.3/copy.pyu _deepcopy_dict� s
u _deepcopy_dictc C s" t | � | j t | j | � � S( N( u typeu __func__u deepcopyu __self__( u xu memo( ( u) /opt/alt/python33/lib64/python3.3/copy.pyu _deepcopy_method� s u _deepcopy_methodc C sG y | t | � j | � Wn% t k
rB | g | t | � <Yn Xd S( uM Keeps a reference to the object x in the memo.
Because we remember objects by their id, we have
to assure that possibly temporary objects are kept
alive by referencing them.
We store a reference at the id of the memo, which should
normally not be used unless someone tries to deepcopy
the memo itself...
N( u idu appendu KeyError( u xu memo( ( u) /opt/alt/python33/lib64/python3.3/copy.pyu _keep_alive s
u _keep_alivec C ss t | t � r | St | t � s( t � | d k r= i } n t | � } | d k s[ t � | d d � \ } } | d k r� | d } n i } | d k r� | d } n d } | d k r� | d } n d } | r� t | | � } n | | � }
|
| t | � <| r�| r t | | � } n t |
d � r?|
j | � q�t | t � rot | � d k ro| \ } } n d } | d k r�|
j
j | � n | d k r�x- | j � D] \ } }
t
|
| |
� q�Wq�n | d k rx6 | D]+ } | rt | | � } n |
j | � q�Wn | d k roxH | D]= \ } }
| r^t | | � } t |
| � }
n |
|
| <q+Wn |
S( Ni i i i u __setstate__( i i i i ( u
isinstanceu stru tupleu AssertionErroru Noneu lenu deepcopyu idu hasattru __setstate__u __dict__u updateu itemsu setattru append( u xu infou deepu memou nu callableu argsu stateu listiteru dictiteru yu slotstateu keyu valueu item( ( u) /opt/alt/python33/lib64/python3.3/copy.pyu _reconstruct s\
!
u _reconstructc B s | Ee Z d Z d S( u _EmptyClassN( u __name__u
__module__u __qualname__( u
__locals__( ( u) /opt/alt/python33/lib64/python3.3/copy.pyu _EmptyClassL s u _EmptyClass( u complexu unicode(6 u __doc__u typesu weakrefu copyregu dispatch_tableu builtinsu Exceptionu Erroru erroru org.python.coreu PyStringMapu ImportErroru Noneu __all__u copyu _copy_dispatchu du _copy_immutableu typeu intu floatu boolu stru tupleu bytesu frozensetu rangeu BuiltinFunctionTypeu Ellipsisu FunctionTypeu refu tu getattru nameu _copy_with_constructoru listu dictu setu _copy_with_copy_methodu deepcopyu _deepcopy_dispatchu _deepcopy_atomicu complexu NameErroru CodeTypeu AttributeErroru _deepcopy_listu _deepcopy_tupleu _deepcopy_dictu _deepcopy_methodu
MethodTypeu _keep_aliveu _reconstructu _EmptyClass( ( ( u) /opt/alt/python33/lib64/python3.3/copy.pyu <module>1 s�
)
5
7