this post was submitted on 17 Jul 2024
22 points (95.8% liked)

Programming

17313 readers
74 users here now

Welcome to the main community in programming.dev! Feel free to post anything relating to programming here!

Cross posting is strongly encouraged in the instance. If you feel your post or another person's post makes sense in another community cross post into it.

Hope you enjoy the instance!

Rules

Rules

  • Follow the programming.dev instance rules
  • Keep content related to programming in some way
  • If you're posting long videos try to add in some form of tldr for those who don't want to watch videos

Wormhole

Follow the wormhole through a path of communities [email protected]



founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[โ€“] [email protected] 4 points 3 months ago (1 children)
  1. The return value of time.time() is actually a floating-point number ... It's also not guaranteed to be monotonically increasing, which is a whole other thing that can trip people up, but that will have to be a separate blog post.

Oh god, I didn't realize that about Python and the POSIX spec. Cautiously, I'm going to guess that GPS seconds are one of the few reliable ways to uniformly convey a monotonically-increasing time reference.

Python has long since deprecated the datetime.datetime.utcnow() function, because it produces a naive object that is ostensibly in UTC.

Ok, this is just a plainly bad decision then and now by the datetime library people. What possible reason could have existed to produce a TZ-naive object from a library call that only returns a reference to UTC?

[โ€“] pelya 1 points 3 months ago

You also have CLOCK_MONOTONIC, which could or could not be the number of seconds since last reboot.

To be honest, this mess was directly inherited from POSIX C system calls.