[Python-Dev] A couple of PEP 418 comments

Antoine Pitrou solipsis at pitrou.net
Fri Apr 13 15:38:39 CEST 2012


I'm just starting a new thread since the old ones are so crowded.
First, overall I think the PEP is starting to look really good and
insightful! (congratulations to Victor)

I have a couple of comments, mostly small ones:

> "function" (str): name of the underlying operating system function.

I think "implementation" is a better name here (more precise, and
perhaps also more accurate :-)).

> time.monotonic()
> time.perf_counter()
> time.process_time()

The descriptions should really stress the scope of the result's
validity. My guess (or wish :-)) would be:

- time.monotonic(): system-wide results, comparable from one process to
- time.perf_counter(): process-wide results, comparable from one thread
  to another (?)
- time.process_time(): process-wide, by definition

It would also be nice to know if some systems may be unable to
implement time.monotonic().

> GetTickCount() has an precision of 55 ms on Windows 9x.

Do we care? :) Precision under recent Windows variants (XP or later)
would be more useful.

Is there a designated dictator for this PEP?



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