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3 \�K�@s�dZddlmZmZddlmZmZddlZddlZddl Z d)Z d*Z dd�Z edd d d d g�Z d e _e jd+kr�de j_de j_de j_de j_Gdd�de�ZGdd�ded�ZGdd�de�ZGdd�de�Zeed�r�Gdd�de�Zeed ��rGd!d"�d"e�Zeed#��r"Gd$d%�d%e�Zeed&��r>Gd'd(�d(e�Zd(e�k�rPeZn:d"e�k�rbeZn(d%e�k�rteZnde�k�r�eZneZdS),z|Selectors module. This module allows high-level and efficient I/O multiplexing, built upon the `select` module primitives. �)�ABCMeta�abstractmethod)� namedtuple�MappingN�c Csft|t�r|}n<yt|j��}Wn*tttfk rJtdj|��d�YnX|dkrbtdj|���|S)z�Return a file descriptor from a file object. 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