[issue14127] os.stat and os.utime: allow preserving exact metadata

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

How about a separate float attribute for the fractional part (in seconds)? This gives a femtosecond precision (assuming a 50 bits mantissa). The utime() could accept a (integral part, fractional part) tuple to set a timestamp without losing bits.

(PHP does something similar, but badly, with its microtime() function:
http://www.php.net/manual/en/function.microtime.php)

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nosy: +pitrou

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