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r2 dS X |d k S )NF)r7 rI rB rJ )r r9 rK r r r � __contains__� s z WeakValueDictionary.__contains__c C s d| j jt| �f S )Nz <%s at %#x>)r) r. �id)r r r r �__repr__� s z WeakValueDictionary.__repr__c C s& | j r| j� t|| j|�| j|< d S )N)r7 rI �KeyedRefr@ rB )r r9 �valuer r r � __setitem__� s z WeakValueDictionary.__setitem__c C sF | j r| j� t� }x,| jj� D ] \}}|� }|d k r |||< q W |S )N)r7 rI r rB �items)r �newr9 r: rK r r r �copy� s zWeakValueDictionary.copyc C sZ ddl m} | jr| j� | j� }x2| jj� D ]$\}}|� }|d k r.|||||�< q.W |S )Nr )�deepcopy)rW rX r7 rI r) rB rU )r �memorX rV r9 r: rK r r r � __deepcopy__� s z WeakValueDictionary.__deepcopy__Nc C sL | j r| j� y| j| }W n tk
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zWeakValueDictionary.keysc c s6 | j r| j� t| �� | jj� E dH W dQ R X dS )a� Return an iterator that yields the weak references to the values.
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to be checked before being used. This can be used to avoid
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zWeakValueDictionary.updatec C s | j r| j� t| jj� �S )a~ Return a list of weak references to the values.
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c s, e Zd ZdZdZdd� Z� fdd�Z� ZS )rR a[ Specialized reference that includes a key corresponding to the value.
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of getting a reference to the key from an enclosing scope.
r9 c C s t j| ||�}||_|S )N)r r" r9 )r! �obr r9 r r r r r" N s zKeyedRef.__new__c s t � j||� d S )N)r' rF )r rk r r9 )r) r r rF S s zKeyedRef.__init__)r9 )r. r/ r0 r1 r2 r" rF r4 r r )r) r rR B s rR c @ s� e Zd ZdZd+dd�Zdd� Zdd� Zd d
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an application without adding attributes to those objects. This
can be especially useful with objects that override attribute
accesses.
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t | j�S )az Return a list of weak references to the keys.
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keep the keys around longer than needed.
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zWeakKeyDictionary.keyrefsc C s4 d| _ x(| jj� \}}|� }|d k r||fS qW d S )NT)rl rB rb )r r9 rS rK r r r rb � s zWeakKeyDictionary.popitemc G s d| _ | jjt|�f|�� S )NT)rl rB rG r )r r9 rD r r r rG � s zWeakKeyDictionary.popc C s | j jt|| j�|�S )N)rB rc r r@ )r r9 r[ r r r rc � s z WeakKeyDictionary.setdefaultc K s` | j }|d k rJt|d�s$ti �|�}x$|j� D ]\}}||t|| j�< q.W t|�r\| j|� d S )NrU )rB rd r! rU r r@ r? rC )r rf re r= r9 rS r r r rC � s
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� Zedd� �Zedd� �Zejdd� �Zdd� Zedd� �Zedd� �ZdS )r a Class for finalization of weakrefable objects
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and returns the result. After this the finalizer is dead, and
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atexit attribute is true will be run in reverse order of creation.
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