:jE tdZddlZejddk(Zejdddk(Zejdddk(Zejdddk\Zejddk(Zejdddk\Zerddl Z e fZ e efZeZeZd Zn$ddlZefZ esere efZne fZeZesereseZd ZneZd Zd ZGd d eZy)zlA tiny version of `six` to help with backwards compability. Also includes compatibility helpers for numpy. N)r)r)rr)r?zr6s   qQ !& !& 1* qQ !&,#,*/ , T#L6L* d5O O  4,r