No need to maintain two different pieces of logic - a `utcnow()` for
Python < 3.11 and `now(datetime.UTC)` for Python >= 3.11.
`datetime.timezone.utc` existed long before datetime.UTC and that's what
the `utcnow` facade should use.
This means that all the `utcnow()` will always have `tzinfo=UTC`
regardless of the Python version.
There's still a problem with the `utcnow()`-generated timestamps that
have been generated by previous versions of Python and stored on the db.
Therefore, when the code performs comparisons with timestamps fetched
from the db, it should always explicitly do a `.replace(tzinfo=utc)` to
ensure that we always compare offset-aware datetime representations.
See blog post for technical details:
https://manganiello.blog/wheres-my-time-again
`datetime.utcnow` may be deprecated on Python >= 3.12, but
`datetime.UTC` isn't present on older Python versions.
Added a `platypush.utils.utcnow()` method as a workaround compatible
with both.
YAML isn't part of the Python standard library, while JSON is.
If we want `setup.py` to dynamically parse the available integration
manifest files in order to populate the extra dependencies, then it's
better to rely on a JSON format for manifest files - the parser is part
of the standard library and it doesn't require the user to install
`pyyaml` before `platypush`.
continuous-integration/drone/push Build is passingDetails
Added an `add_dependencies` plugin to the Sphinx build process that
parses the manifest files of the scanned backends and plugins and
automatically generates the documentation for the required dependencies
and triggered events.
This means that those dependencies are no longer required to be listed
in the docstring of the class itself.
Also in this commit:
- Black/LINT for some integrations that hadn't been touched in a long
time.
- Deleted some leftovers from previous refactors (deprecated
`backend.mqtt`, `backend.zwave.mqtt`, `backend.http.request.rss`).
- Deleted deprecated `inotify` backend - replaced by `file.monitor` (see
#289).
continuous-integration/drone/push Build is passingDetails
- If a Python optional dependency is available as a system package on
the target system, try and install it that route rather than pip. It's
usually faster and it decreases the risk of breaking system packages.
- Added support for apk dependencies in manifest files. This brings the
number of distros officially supported by all the extensions to four:
- Alpine
- Arch
- Debian
- Ubuntu
Fabio Manganiello