[issue15443] datetime module has no support for nanoseconds

[Alexander Belopolsky]

Alexander Belopolsky added the comment:

Given that struct timespec defined as 

           struct timespec {
               time_t   tv_sec;        /* seconds */
               long     tv_nsec;       /* nanoseconds */
           };

is slowly becoming the prevailing standard to represent time in system interfaces, Python's inability to faithfully store it in a high level object will increasingly become a handicap.

People are starting to put nanoseconds in their databases not because they really need such precision, but because this is what they get from their devices and at the collection time cannot do anything "smart".

The program that collects the events may simply not have time to do anything other than store raw data, or not have the higher level knowledge of what is the proper rounding.

The proper rounding is best to be done at the analysis time and by a program written in a higher level language such as Python.

----------
assignee:  -> belopolsky
stage:  -> needs patch
versions: +Python 3.5 -Python 3.4

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue15443>
_______________________________________