datetime.datetime.utcnow() is deprecated

[grigi]

Problem Statement

Python 3.12 deprecated datetime.datetime.utcnow():

.pyenv/lib/python3.12/site-packages/sentry_sdk/tracing.py:148: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).

Solution Brainstorm

Update sentry to use datetime.datetime.now(datetime.UTC) instead of datetime.datetime.utcnow() as suggested.
Some quick testing shows that for this to work on python < 3.11 would have to do datetime.datetime.now(datetime.timezone.utc) instead as the datetime.UTC shortcut was only added in python 3.11

[sentrivana]

Good catch @grigi! I've added this to the list of things we should tackle in order to support 3.12.

If you or anyone reading this feels like it, PRs are very welcome!

[mohebmithani]

Hi @sentrivana can i take this?

[rmad17]

I made the changes, but unfortunately, realized after that I could not push the code to a new branch. What is the process to open a PR?

[sentrivana]

Hey @mohebmithani, no need to ask, feel free to just submit a PR! But seems like @rmad17 already has a solution for this issue.

Awesome @rmad17! The gist is that you need to make the changes on a fork of this repo:

• fork the getsentry/sentry-python repo
• clone the forked repo to work on it locally
• push a new branch with the changes to your fork
• and finally open a PR from your fork (and your branch) against this repo's master branch

We should do a better job outlining this in our CONTRIBUTING.md -- I will look into that. Let me know if you need more pointers!