```
In [4]: ast.dump(ast.parse('f"{x!r}"'))
Out[4]: "Module(body=[Expr(value=JoinedStr(values=[FormattedValue(value=Name(id='x', ctx=Load()), conversion=114)]))], type_ignores=[])"
In [5]: ast.dump(ast.parse('f"{x}"'))
Out[5]: "Module(body=[Expr(value=JoinedStr(values=[FormattedValue(value=Name(id='x', ctx=Load()), conversion=-1)]))], type_ignores=[])"
```
(On 3.9 but I don't think this has changed since 3.6.)
The stdlib also assumes this: https://github.com/python/cpython/blob/main/Lib/ast.py#L1211 (`chr(None)` doesn't work).
- mypy_test and pyright no longer just test the stubs, they now also test other parts of typeshed as well.
- pytype_test.py can now be run on 3.10, meaning the whole test suite can now also be run on 3.10.
- Various test scripts now have from `__future__ import annotations`, meaning they can now only be run on 3.7+.
- Clean up the description of pyright_test.py, which had a slightly confusing wording.
- Also fix the `--dry-run` config option in mypy_test.py, which I accidentally broke in #7746
- Add several type hints to untyped functions.
- While we're at it, upgrade several annotations to use modern syntax by using `from __future__ import annotations`. This means that the tests can't be run on Python 3.6, but 3.6 is EOL, and it is already the case that some scripts in this directory can only be run on more recent Python versions. E.g. `check_new_syntax.py` uses `ast.unparse`, which is only available in Python 3.9+.
- Fix a few pieces of code that didn't type check.
`--enable-error-code ignore-without-code` means that mypy will ignore any type: ignore comments that don't have mypy error codes. It doesn't appear to have any effect on type: ignore comments that mypy_test doesn't use (e.g. because they're pyright- or stubtest-specific).
`--strict-equality` means that mypy will raise errors if we do something silly like `if sys.version_info == "linux"`. flake8-pyi should also check this for us, but I don't see any reason not to have mypy check this as well.
* Upgrade pyright to 1.1.230
* Add `type: ignore`s for new pyright checks regarding multiple inheritance
* Temporarily pin pyright-action to 1.0.4, as changes made in 1.0.5 break typeshed's CI
Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
* Run mypy on the 3.11 stdlib in CI, as a regression test for https://github.com/python/mypy/issues/12220
* Correct the docstring at the top of the file following the changes made in #7478
* Stop the test from crashing when run locally if there's an extra file/folder in the stubs directory.
* Fix `mypy_test.py` so that it actually tests the third-party stubs
* Upgrade to mypy 0.940
* Skip running mypy on `SQLAlchemy` stubs for now, to workaround a mypy crash.
Because we didn't set mypy's clean_exit parameter, it was exiting immediately after checking the stdlib, meaning `mypy_test.py` wasn't checking the third-party stubs at all.
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Shantanu