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Path operations common to more than one OS
Do not use directly. The OS specific modules import the appropriate
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c C s t j| �jS )z1Return the size of a file, reported by os.stat().)r
r �st_size)�filenamer r r r 0 s c C s t j| �jS )zCReturn the last modification time of a file, reported by os.stat().)r
r �st_mtime)r r r r r 5 s c C s t j| �jS )z=Return the last access time of a file, reported by os.stat().)r
r �st_atime)r r r r r : s c C s t j| �jS )zAReturn the metadata change time of a file, reported by os.stat().)r
r �st_ctime)r r r r r ? s c C sl | sdS t | d ttf�s*tttj| ��} t| �}t| �}x,t|�D ] \}}||| krD|d|� S qDW |S )zGGiven a list of pathnames, returns the longest common leading component� r N) �
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