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weakref.cpython-36.pyc
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N)r7 rI r rB �values)r r r r � itervaluerefs� s z!WeakValueDictionary.itervaluerefsc c sN | j r| j� t| ��. x&| jj� D ]}|� }|d k r$|V q$W W d Q R X d S )N)r7 rI r rB r` )r r: r% r r r r` � s zWeakValueDictionary.valuesc C s< | j r| j� x(| jj� \}}|� }|d k r||fS qW d S )N)r7 rI rB �popitem)r r9 r: rK r r r rb � s zWeakValueDictionary.popitemc G s` | j r| j� y| jj|�� }W n tk r8 d }Y nX |d krX|rN|d S t|��n|S d S )Nr )r7 rI rB rG rJ )r r9 rD rK r r r rG s zWeakValueDictionary.popc C s` y| j | � }W n tk r( d }Y nX |d krX| jr@| j� t|| j|�| j |< |S |S d S )N)rB rJ r7 rI rR r@ )r r9 r[ rK r r r � setdefault s z WeakValueDictionary.setdefaultc O s� | s t d��| ^}} t| �dkr0t dt| � ��| r<| d nd }|jrN|j� |j}|d k r�t|d�srti �|�}x&|j� D ]\}}t||j |�||< q|W t|�r�|j |� d S )NzEdescriptor 'update' of 'WeakValueDictionary' object needs an argumentr5 z$expected at most 1 arguments, got %dr rU ) r r? r7 rI rB �hasattrr! rU rR r@ rC )rD �kwargsr �dictr= r9 rK r r r rC s zWeakValueDictionary.updatec C s | j r| j� t| jj� �S )a~ Return a list of weak references to the values. 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This can be used to avoid creating references that will cause the garbage collector to keep the keys around longer than needed. )rg rB )r r r r �keyrefs� s zWeakKeyDictionary.keyrefsc C s4 d| _ x(| jj� \}}|� }|d k r||fS qW d S )NT)rl rB rb )r r9 rS rK r r r rb � s zWeakKeyDictionary.popitemc G s d| _ | jjt|�f|�� S )NT)rl rB rG r )r r9 rD r r r rG � s zWeakKeyDictionary.popc C s | j jt|| j�|�S )N)rB rc r r@ )r r9 r[ r r r rc � s z WeakKeyDictionary.setdefaultc K s` | j }|d k rJt|d�s$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 zWeakKeyDictionary.update)N)N)N)N)r. r/ r0 r1 rF rI ro rM rL rN rQ rT rW ri rZ r\ rO rU r_ rj r` rp rb rG rc rC r r r r r W s. c @ s� e Zd ZdZf Zi ZdZej� Z dZ dZ G dd� d�Z dd� Z ddd �Zd d � Zd d � Zedd� �Zedd� �Zejdd� �Zdd� Zedd� �Zedd� �ZdS )r a Class for finalization of weakrefable objects finalize(obj, func, *args, **kwargs) returns a callable finalizer object which will be called when obj is garbage collected. 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