U
    øÕ/eÖ  ã                   @   s4   d d„ Z dd„ Zdd„ Zdd„ Zdd	„ Zd
d„ ZdS )c                  G   s   d S ©N© )Úargsr   r   ú2/tmp/pip-unpacked-wheel-dbjnr7gq/dask/bag/chunk.pyÚbarrier   s    r   c                 C   s   | | S )znLike :func:`operator.getitem`, but allows setting key using partial
    ``partial(chunk.getitem, key=key)
    r   )ÚxÚkeyr   r   r   Úgetitem   s    r   c                 C   s   | ||d ƒS )Né   r   )ÚcombineÚaccr   r   r   r   Úfoldby_combine2   s    r   c                 C   s   ||| ƒƒ| fS r   r   )r   ÚhashZgrouperr   r   r   Úgroupby_tasks_group_hash   s    r   c                 C   s:   d\}}}| D ] }||d 7 }||7 }|d7 }q|||fS )N)ç        r   é    é   r	   r   )ÚseqÚsquaresÚtotalÚnr   r   r   r   Ú	var_chunk   s    

r   c                 C   sZ   t t| Ž ƒ\}}}tt|ƒƒtt|ƒƒt|ƒ  }} }|| | | d  }|| ||  S )Nr   )ÚlistÚzipÚfloatÚsum)r   Zddofr   ZtotalsÚcountsZx2r   Úresultr   r   r   Úvar_aggregate   s    $r   N)r   r   r   r   r   r   r   r   r   r   Ú<module>   s
   	