Alexander Belopolsky <alexander.belopol...@gmail.com> added the comment:

On Wed, Jul 25, 2012 at 4:17 AM, Marc-Andre Lemburg <rep...@bugs.python.org> 
wrote:
> ... full C double precision for the time part of a timestamp,
> which covers nanoseconds just fine.

No, it does not:

>>> import time
>>> t = time.time()
>>> t + 5e-9 == t
True

In fact, C double precision is barely enough to cover microseconds:

>>> t + 1e-6 == t
False

>>> t + 1e-7 == t
True

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue15443>
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