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r4 Y dS X |d k S r rJ rL r r r � __contains__� s z WeakValueDictionary.__contains__c C s d| j jt| �f S �Nz <%s at %#x>�r+ r2 �idrR r r r �__repr__� s z WeakValueDictionary.__repr__c C s& | j r| �� t|| j|�| j|< d S r' )r: rI �KeyedRefrA r= �r r< �valuer r r � __setitem__� s z WeakValueDictionary.__setitem__c C sV | j r| �� t� }t| ��0 | j�� D ] \}}|� }|d k r(|||< q(W 5 Q R X |S r' )r: rI r r r= �items)r �newr< r> rM r r r �copy� s
zWeakValueDictionary.copyc C sj ddl m} | jr| �� | �� }t| ��6 | j�� D ]$\}}|� }|d k r6|||||�< q6W 5 Q R X |S �Nr )�deepcopy)r_ ra r: rI r+ r r= r] )r �memora r^ r< r> rM r r r � __deepcopy__� s
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zWeakValueDictionary.getc c sR | j r| �� t| ��2 | j�� D ] \}}|� }|d k r"||fV q"W 5 Q R X d S r' �r: rI r r= r] )r �kr> �vr r r r] � s
zWeakValueDictionary.itemsc c sJ | j r| �� t| ��* | j�� D ]\}}|� d k r"|V q"W 5 Q R X d S r' rf )r rg r> r r r �keys� s
zWeakValueDictionary.keysc c s6 | j r| �� t| �� | j�� E dH W 5 Q R X dS )a� Return an iterator that yields the weak references to the values.
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�r< c C s t �| ||�}||_|S r' )r r# r< )r" �obr r< r r r r r# C s zKeyedRef.__new__c s t � �||� d S r' )r( rE )r rz r r< r* r r rE H s zKeyedRef.__init__)r2 r3 r4 r5 r6 r# rE r8 r r r* r rY 7 s rY c @ s� e Zd ZdZd+dd�Zdd� Zdd� Zd d
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can be especially useful with objects that override attribute
accesses.
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zWeakKeyDictionary.keyrefsc C s0 d| _ | j�� \}}|� }|d k r||fS qd S r0 )r{ r= rn )r r< r[ rM r r r rn � s
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