# What this PR does
Upgrade to Python 3.12 + fix several invalid test assertions that lead
to test failures in the latest version of `pytest`:
```
AttributeError: 'called_once_with' is not a valid assertion. Use a spec for the mock if 'called_once_with' is meant to be an attribute.. Did you mean: 'assert_called_once_with'?
```
## Checklist
- [ ] Unit, integration, and e2e (if applicable) tests updated
- [x] Documentation added (or `pr:no public docs` PR label added if not
required)
- [x] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required)
# What this PR does
Related to https://github.com/grafana/oncall/issues/2392
- Re-enable the following `mypy` rules + fix their pre-existing errors:
- `no-redef`
- `valid-type`
- `var-annotated`
- Add stronger return typing to the `GrafanaAPIClient` by use of
generics + add some links to documentation in the method docstrings
## Checklist
- [x] Unit, integration, and e2e (if applicable) tests updated
- [x] Documentation added (or `pr:no public docs` PR label added if not
required)
- [x] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required)
# What this PR does
Fix the following pre-existing `import` `mypy` errors (related to
#2392):
```bash
❯ mypy .
settings/prod_without_db.py:4: error: Cannot find implementation or library stub for module named "uwsgi" [import]
engine/logging/formatters.py:2: error: Skipping analyzing "pythonjsonlogger": module is installed, but missing library stubs or py.typed marker [import]
engine/logging/formatters.py:2: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
engine/celery.py:7: error: Skipping analyzing "celery.utils.debug": module is installed, but missing library stubs or py.typed marker [import]
Found 3 errors in 3 files (checked 595 source files)
```
## Which issue(s) this PR fixes
## Checklist
- [ ] Unit, integration, and e2e (if applicable) tests updated
- [ ] Documentation added (or `pr:no public docs` PR label added if not
required)
- [ ] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required)
# What this PR does
```bash
❯ mypy .
Success: no issues found in 595 source files
```
- re-enable the mypy CI check
- fixes all `django-manager-missing` mypy errors
- disable all other rules currently giving mypy errors
- changing the approach here. rather than enforcing that backend
contributors fix >= 1 `mypy` error on their PR, lets simply disable all
the rules that're currently returning errors and slowly re-enable these
one at a time #2392
## Checklist
- [ ] Unit, integration, and e2e (if applicable) tests updated (N/A)
- [ ] Documentation added (or `pr:no public docs` PR label added if not
required) (N/A)
- [ ] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required) (N/A)
# What this PR does
See #2173
Also, closes#2187 . All of the new files under `type_stubs/icalendar`
were autogenerated by running:
```bash
stubgen -p icalendar -o type_stubs
```
## Checklist
- [ ] Unit, integration, and e2e (if applicable) tests updated
- [ ] Documentation added (or `pr:no public docs` PR label added if not
required)
- [ ] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required)
# What this PR does
- Adds [`mypy` static type checking](https://mypy-lang.org/) to our CI
pipeline. Currently there is still a **ton** of errors being returned by
the tool, as we'll need to fix pre-existing errors. I think we can
slowly chip away at these errors in small PRs, doing them all in one
large PR is likely very risky.
- Also, this PR starts chipping away at one of the main type errors that
we have which is accessing the `datetime` class (from the `datetime`
library) or `timedelta` function on the `django.utils.timezone` module.
Basically we should be instead accessing these two objects from the
native `datetime` module. This makes sense because the [`__all__`
attribute](https://github.com/django/django/blob/main/django/utils/timezone.py#L14-L30)
in `django.utils.timezone` does not re-export `datetime` or `timedelta`.
- splits `engine` dependencies out into `requirements.txt` and
`requirements-dev.txt`
## Checklist
- [ ] Unit, integration, and e2e (if applicable) tests updated (N/A)
- [ ] Documentation added (or `pr:no public docs` PR label added if not
required) (N/A)
- [ ] `CHANGELOG.md` updated (or `pr:no changelog` PR label added if not
required) (N/A)
