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weakref.cpython-33.pyc
� �� f�, c @ s� d Z d d l m Z m Z m Z m Z m Z m Z m Z d d l m Z m Z d d l Z e e f Z d d d d d d d d d d d g Z Gd d � d e j � Z Gd d � d e � Z Gd d � d e j � Z d S( u{ Weak reference support for Python. This module is an implementation of PEP 205: http://www.python.org/dev/peps/pep-0205/ i ( u getweakrefcountu getweakrefsu refu proxyu CallableProxyTypeu ProxyTypeu ReferenceType( u WeakSetu _IterationGuardNu refu proxyu getweakrefcountu getweakrefsu WeakKeyDictionaryu ReferenceTypeu ProxyTypeu CallableProxyTypeu ProxyTypesu WeakValueDictionaryu WeakSetc B s | Ee Z d Z d Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z e Z d d � Z d* d d � Z d d � Z d d � Z e Z d d � Z d d � Z d d! � Z d" d# � Z d* d$ d% � Z d* d& d' � Z d( d) � Z d* S(+ u WeakValueDictionaryu� Mapping class that references values weakly. Entries in the dictionary will be discarded when no strong reference to the value exists anymore c O sT t | � d d � } | | _ g | _ t � | _ i | _ } | j | | � d S( Nc S sH | � } | d k rD | j r4 | j j | j � qD | j | j =n d S( N( u Noneu _iteratingu _pending_removalsu appendu keyu data( u wru selfrefu self( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu remove. s u, WeakValueDictionary.__init__.<locals>.remove( u refu _removeu _pending_removalsu setu _iteratingu datau update( u selfu argsu kwu removeu d( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __init__- s u WeakValueDictionary.__init__c C s0 | j } | j } x | r+ | | j � =q Wd S( N( u _pending_removalsu datau pop( u selfu lu d( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu _commit_removals< s u$ WeakValueDictionary._commit_removalsc C s3 | j | � } | d k r+ t | � � n | Sd S( N( u datau Noneu KeyError( u selfu keyu o( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __getitem__D s u WeakValueDictionary.__getitem__c C s$ | j r | j � n | j | =d S( N( u _pending_removalsu _commit_removalsu data( u selfu key( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __delitem__K s u WeakValueDictionary.__delitem__c C s t | j � t | j � S( N( u lenu datau _pending_removals( u self( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __len__P s u WeakValueDictionary.__len__c C s7 y | j | � } Wn t k r, d SYn X| d k S( NF( u datau KeyErroru Falseu None( u selfu keyu o( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __contains__S s u WeakValueDictionary.__contains__c C s d t | � S( Nu <WeakValueDictionary at %s>( u id( u self( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __repr__Z s u WeakValueDictionary.__repr__c C s6 | j r | j � n t | | j | � | j | <d S( N( u _pending_removalsu _commit_removalsu KeyedRefu _removeu data( u selfu keyu value( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __setitem__] s u WeakValueDictionary.__setitem__c C sO t � } x? | j j � D]. \ } } | � } | d k r | | | <q q W| S( N( u WeakValueDictionaryu datau itemsu None( u selfu newu keyu wru o( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu copyb s u WeakValueDictionary.copyc C sk d d l m } | j � } xH | j j � D]7 \ } } | � } | d k r, | | | | | � <q, q, W| S( Ni ( u deepcopy( u copyu deepcopyu __class__u datau itemsu None( u selfu memou deepcopyu newu keyu wru o( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __deepcopy__l s u WeakValueDictionary.__deepcopy__c C sK y | j | } Wn t k r) | SYn X| � } | d k rC | S| Sd S( N( u datau KeyErroru None( u selfu keyu defaultu wru o( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu getu s u WeakValueDictionary.getc c sZ t | � �H x@ | j j � D]/ \ } } | � } | d k r | | f Vq q WWd QXd S( N( u _IterationGuardu datau itemsu None( u selfu ku wru v( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu items� s u WeakValueDictionary.itemsc c sN t | � �< x4 | j j � D]# \ } } | � d k r | Vq q WWd QXd S( N( u _IterationGuardu datau itemsu None( u selfu ku wr( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu keys� s u WeakValueDictionary.keysc c s6 t | � �$ x | j j � D] } | Vq WWd QXd S( u� Return an iterator that yields the weak references to the values. The references are not guaranteed to be 'live' at the time they are used, so the result of calling the references needs to be checked before being used. This can be used to avoid creating references that will cause the garbage collector to keep the values around longer than needed. N( u _IterationGuardu datau values( u selfu wr( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu itervaluerefs� s u! WeakValueDictionary.itervaluerefsc c sN t | � �< x4 | j j � D]# } | � } | d k r | Vq q WWd QXd S( N( u _IterationGuardu datau valuesu None( u selfu wru obj( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu values� s u WeakValueDictionary.valuesc C sT | j r | j � n x7 | j j � \ } } | � } | d k r | | f Sq d S( N( u _pending_removalsu _commit_removalsu datau popitemu None( u selfu keyu wru o( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu popitem� s u WeakValueDictionary.popitemc G sx | j r | j � n y | j j | � � } Wn# t k rT | rM | d S� Yn X| d k rp t | � � n | Sd S( Ni ( u _pending_removalsu _commit_removalsu datau popu KeyErroru None( u selfu keyu argsu o( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu pop� s u WeakValueDictionary.popc C sg y | j | } WnH t k r[ | j r7 | j � n t | | j | � | j | <| SYn X| � Sd S( N( u datau KeyErroru _pending_removalsu _commit_removalsu KeyedRefu _remove( u selfu keyu defaultu wr( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu setdefault� s u WeakValueDictionary.setdefaultc K s� | j r | j � n | j } | d k r� t | d � sO t i � | � } n x6 | j � D]% \ } } t | | j | � | | <q\ Wn t | � r� | j | � n d S( Nu items( u _pending_removalsu _commit_removalsu datau Noneu hasattru typeu itemsu KeyedRefu _removeu lenu update( u selfu dictu kwargsu du keyu o( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu update� s u WeakValueDictionary.updatec C s t | j j � � S( u~ Return a list of weak references to the values. The references are not guaranteed to be 'live' at the time they are used, so the result of calling the references needs to be checked before being used. This can be used to avoid creating references that will cause the garbage collector to keep the values around longer than needed. ( u listu datau values( u self( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu valuerefs� s u WeakValueDictionary.valuerefsN( u __name__u __module__u __qualname__u __doc__u __init__u _commit_removalsu __getitem__u __delitem__u __len__u __contains__u __repr__u __setitem__u copyu __copy__u __deepcopy__u Noneu getu itemsu keysu __iter__u itervaluerefsu valuesu popitemu popu setdefaultu updateu valuerefs( u __locals__( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu WeakValueDictionary! s. c s> | Ee Z d Z d Z d Z d d � Z � f d d � Z � S( u KeyedRefu[ Specialized reference that includes a key corresponding to the value. This is used in the WeakValueDictionary to avoid having to create a function object for each key stored in the mapping. A shared callback object can use the 'key' attribute of a KeyedRef instead of getting a reference to the key from an enclosing scope. u keyc C s" t j | | | � } | | _ | S( N( u refu __new__u key( u typeu obu callbacku keyu self( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __new__� s u KeyedRef.__new__c s t � j | | � d S( N( u superu __init__( u selfu obu callbacku key( u __class__( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __init__� s u KeyedRef.__init__( u key( u __name__u __module__u __qualname__u __doc__u __slots__u __new__u __init__( u __locals__( ( u __class__u, /opt/alt/python33/lib64/python3.3/weakref.pyu KeyedRef� s u KeyedRefc B s | Ee Z d Z d Z d( d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z d d � Z e Z d d � Z d( d d � Z d d � Z d d � Z d d � Z e Z d d � Z d d � Z d d! � Z d" d# � Z d( d$ d% � Z d( d& d' � Z d( S() u WeakKeyDictionaryu� Mapping class that references keys weakly. Entries in the dictionary will be discarded when there is no longer a strong reference to the key. This can be used to associate additional data with an object owned by other parts of an application without adding attributes to those objects. This can be especially useful with objects that override attribute accesses. c C s\ i | _ t | � d d � } | | _ g | _ t � | _ | d k rX | j | � n d S( Nc S sB | � } | d k r> | j r1 | j j | � q> | j | =n d S( N( u Noneu _iteratingu _pending_removalsu appendu data( u ku selfrefu self( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu remove s u* WeakKeyDictionary.__init__.<locals>.remove( u datau refu _removeu _pending_removalsu setu _iteratingu Noneu update( u selfu dictu remove( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __init__ s u WeakKeyDictionary.__init__c C sI | j } | j } x0 | rD y | | j � =Wq t k r@ Yq Xq Wd S( N( u _pending_removalsu datau popu KeyError( u selfu lu d( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu _commit_removals s u" WeakKeyDictionary._commit_removalsc C s | j t | � =d S( N( u datau ref( u selfu key( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __delitem__ s u WeakKeyDictionary.__delitem__c C s | j t | � S( N( u datau ref( u selfu key( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __getitem__! s u WeakKeyDictionary.__getitem__c C s t | j � t | j � S( N( u lenu datau _pending_removals( u self( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __len__$ s u WeakKeyDictionary.__len__c C s d t | � S( Nu <WeakKeyDictionary at %s>( u id( u self( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __repr__' s u WeakKeyDictionary.__repr__c C s | | j t | | j � <d S( N( u datau refu _remove( u selfu keyu value( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __setitem__* s u WeakKeyDictionary.__setitem__c C sO t � } x? | j j � D]. \ } } | � } | d k r | | | <q q W| S( N( u WeakKeyDictionaryu datau itemsu None( u selfu newu keyu valueu o( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu copy- s u WeakKeyDictionary.copyc C sk d d l m } | j � } xH | j j � D]7 \ } } | � } | d k r, | | | � | | <q, q, W| S( Ni ( u deepcopy( u copyu deepcopyu __class__u datau itemsu None( u selfu memou deepcopyu newu keyu valueu o( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __deepcopy__7 s u WeakKeyDictionary.__deepcopy__c C s | j j t | � | � S( N( u datau getu ref( u selfu keyu default( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu get@ s u WeakKeyDictionary.getc C s6 y t | � } Wn t k r( d SYn X| | j k S( NF( u refu TypeErroru Falseu data( u selfu keyu wr( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu __contains__C s u WeakKeyDictionary.__contains__c c sZ t | � �H x@ | j j � D]/ \ } } | � } | d k r | | f Vq q WWd QXd S( N( u _IterationGuardu datau itemsu None( u selfu wru valueu key( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu itemsJ s u WeakKeyDictionary.itemsc c sH t | � �6 x. | j D]# } | � } | d k r | Vq q WWd QXd S( N( u _IterationGuardu datau None( u selfu wru obj( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu keysQ s u WeakKeyDictionary.keysc c sN t | � �< x4 | j j � D]# \ } } | � d k r | Vq q WWd QXd S( N( u _IterationGuardu datau itemsu None( u selfu wru value( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu valuesZ s u WeakKeyDictionary.valuesc C s t | j � S( uz Return a list of weak references to the keys. The references are not guaranteed to be 'live' at the time they are used, so the result of calling the references needs to be checked before being used. This can be used to avoid creating references that will cause the garbage collector to keep the keys around longer than needed. ( u listu data( u self( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu keyrefs` s u WeakKeyDictionary.keyrefsc C s> x7 | j j � \ } } | � } | d k r | | f Sq d S( N( u datau popitemu None( u selfu keyu valueu o( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu popiteml s u WeakKeyDictionary.popitemc G s | j j t | � | � S( N( u datau popu ref( u selfu keyu args( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu pops s u WeakKeyDictionary.popc C s | j j t | | j � | � S( N( u datau setdefaultu refu _remove( u selfu keyu default( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu setdefaultv s u WeakKeyDictionary.setdefaultc K s� | j } | d k ro t | d � s9 t i � | � } n x3 | j � D]" \ } } | | t | | j � <qF Wn t | � r� | j | � n d S( Nu items( u datau Noneu hasattru typeu itemsu refu _removeu lenu update( u selfu dictu kwargsu du keyu value( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu updatey s u WeakKeyDictionary.updateN( u __name__u __module__u __qualname__u __doc__u Noneu __init__u _commit_removalsu __delitem__u __getitem__u __len__u __repr__u __setitem__u copyu __copy__u __deepcopy__u getu __contains__u itemsu keysu __iter__u valuesu keyrefsu popitemu popu setdefaultu update( u __locals__( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu WeakKeyDictionary� s, ( u __doc__u _weakrefu getweakrefcountu getweakrefsu refu proxyu CallableProxyTypeu ProxyTypeu ReferenceTypeu _weakrefsetu WeakSetu _IterationGuardu collectionsu ProxyTypesu __all__u MutableMappingu WeakValueDictionaryu KeyedRefu WeakKeyDictionary( ( ( u, /opt/alt/python33/lib64/python3.3/weakref.pyu <module> s 4 �
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