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Add --strict-bool
flag to prohib treating bool
as int
#17487
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Shouldn't this be done at the level of typeshed stubs? It seems like changing typeshed is probably better (and faster) than additional branching in every subtype check. Alternatively it would probably also possible to change the mro during semantic analysis. |
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You can't have conditional stubs with
The check is a constant time check. Compared to all other machinery the performance impact is insignificant.
This could also affect other parts of the equasion like: attribute access, This is the safest bet. |
Diff from mypy_primer, showing the effect of this PR on open source code: websockets (https://github.com/aaugustin/websockets)
+ src/websockets/sync/server.py:456: error: Argument 3 to "setsockopt" of "socket" has incompatible type "bool"; expected "int | Buffer" [arg-type]
+ src/websockets/sync/client.py:263: error: Argument 3 to "setsockopt" of "socket" has incompatible type "bool"; expected "int | Buffer" [arg-type]
psycopg (https://github.com/psycopg/psycopg)
+ tests/_test_connection.py:61: error: Incompatible types in assignment (expression has type "bool", target has type "int") [assignment]
+ tests/_test_connection.py:62: error: Incompatible types in assignment (expression has type "bool", target has type "int") [assignment]
pip (https://github.com/pypa/pip)
+ src/pip/_internal/operations/install/wheel.py:618: error: Argument "quiet" to "compile_file" has incompatible type "bool"; expected "int" [arg-type]
bokeh (https://github.com/bokeh/bokeh)
+ src/bokeh/util/package.py:117:14: error: Argument 1 to "exit" has incompatible type "bool"; expected "str | int | None" [arg-type]
pywin32 (https://github.com/mhammond/pywin32)
+ adodbapi/adodbapi.py:44:15: error: Incompatible types in assignment (expression has type "bool", variable has type "int") [assignment]
boostedblob (https://github.com/hauntsaninja/boostedblob)
+ boostedblob/path.py:569: error: Incompatible return value type (got "bool", expected "int") [return-value]
+ boostedblob/path.py:570: error: Incompatible return value type (got "bool", expected "int") [return-value]
+ boostedblob/path.py:575: error: Incompatible return value type (got "bool", expected "int") [return-value]
pylint (https://github.com/pycqa/pylint)
+ pylint/lint/base_options.py:79: error: Dict entry 0 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:116: error: Dict entry 0 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:145: error: Dict entry 0 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:258: error: Dict entry 2 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:259: error: Dict entry 3 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:314: error: Dict entry 2 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:326: error: Dict entry 1 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:339: error: Dict entry 1 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:364: error: Dict entry 2 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:398: error: Dict entry 0 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:411: error: Dict entry 0 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:421: error: Dict entry 0 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:442: error: Dict entry 4 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:452: error: Dict entry 4 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:472: error: Dict entry 4 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:483: error: Dict entry 4 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:494: error: Dict entry 4 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:504: error: Dict entry 4 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:514: error: Dict entry 4 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:524: error: Dict entry 4 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:534: error: Dict entry 4 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:547: error: Dict entry 4 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:560: error: Dict entry 4 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:572: error: Dict entry 4 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:583: error: Dict entry 4 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:594: error: Dict entry 3 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/base_options.py:605: error: Dict entry 4 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/checkers/symilar.py:767: error: Dict entry 0 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/checkers/symilar.py:776: error: Dict entry 0 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/checkers/symilar.py:785: error: Dict entry 0 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/checkers/symilar.py:794: error: Dict entry 0 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/lint/pylinter.py:82: error: Argument 1 to "TextIOWrapper" has incompatible type "BinaryIO"; expected "_WrappedBuffer" [arg-type]
+ pylint/lint/pylinter.py:82: note: Following member(s) of "BinaryIO" have conflicts:
+ pylint/lint/pylinter.py:82: note: Expected:
+ pylint/lint/pylinter.py:82: note: def isatty(self) -> int
+ pylint/lint/pylinter.py:82: note: Got:
+ pylint/lint/pylinter.py:82: note: def isatty(self) -> bool
+ pylint/pyreverse/main.py:128: error: Dict entry 2 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/pyreverse/main.py:137: error: Dict entry 2 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/pyreverse/main.py:156: error: Dict entry 2 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
+ pylint/pyreverse/main.py:164: error: Dict entry 1 has incompatible type "str": "bool"; expected "str": "int | Pattern[str] | Iterable[str | int | Pattern[str]] | type[_CallbackAction] | Callable[[Any], Any] | Callable[[Any, Any, Any, Any], Any] | None" [dict-item]
... (truncated 17 lines) ...
mongo-python-driver (https://github.com/mongodb/mongo-python-driver)
+ pymongo/synchronous/pool.py:837: error: Argument 3 to "setsockopt" of "socket" has incompatible type "bool"; expected "int | Buffer" [arg-type]
+ pymongo/asynchronous/pool.py:839: error: Argument 3 to "setsockopt" of "socket" has incompatible type "bool"; expected "int | Buffer" [arg-type]
rich (https://github.com/Textualize/rich)
+ rich/style.py:152: error: Argument 1 to "sum" has incompatible type "tuple[bool, Literal[False, 2], Literal[False, 4], Literal[False, 8], Literal[False, 16], Literal[False, 32], Literal[False, 64], Literal[False, 128], Literal[False, 256], Literal[False, 512], Literal[False, 1024], Literal[False, 2048], Literal[False, 4096]]"; expected "Iterable[bool]" [arg-type]
+ rich/scope.py:76: error: List item 5 has incompatible type "bool"; expected "str | int | None" [list-item]
+ rich/scope.py:76: error: List item 6 has incompatible type "bool"; expected "str | int | None" [list-item]
+ rich/progress.py:1370: error: Argument 1 to "TextIOWrapper" has incompatible type "_Reader"; expected "_WrappedBuffer" [arg-type]
+ rich/progress.py:1370: note: Following member(s) of "_Reader" have conflicts:
+ rich/progress.py:1370: note: Expected:
+ rich/progress.py:1370: note: def isatty(self) -> int
+ rich/progress.py:1370: note: Got:
+ rich/progress.py:1370: note: def isatty(self) -> bool
python-chess (https://github.com/niklasf/python-chess)
+ chess/syzygy.py:1071: error: Argument 4 to "setup_pairs" of "Table" has incompatible type "bool"; expected "int" [arg-type]
+ chess/syzygy.py:1074: error: Argument 4 to "setup_pairs" of "Table" has incompatible type "bool"; expected "int" [arg-type]
+ chess/syzygy.py:1106: error: Argument 4 to "setup_pairs" of "Table" has incompatible type "bool"; expected "int" [arg-type]
+ chess/syzygy.py:1109: error: Argument 4 to "setup_pairs" of "Table" has incompatible type "bool"; expected "int" [arg-type]
+ chess/syzygy.py:1270: error: Argument 4 to "setup_pairs" of "Table" has incompatible type "bool"; expected "int" [arg-type]
+ chess/syzygy.py:1306: error: Argument 4 to "setup_pairs" of "Table" has incompatible type "bool"; expected "int" [arg-type]
+ chess/engine.py:2063: error: Argument 2 to "get" of "dict" has incompatible type "bool"; expected "int | str" [arg-type]
+ chess/engine.py:2417: error: Argument 2 to "get" of "dict" has incompatible type "bool"; expected "int | str" [arg-type]
werkzeug (https://github.com/pallets/werkzeug)
+ tests/test_wsgi.py:158: error: Argument 1 to "TextIOWrapper" has incompatible type "BufferedReader"; expected "_WrappedBuffer" [arg-type]
+ tests/test_wsgi.py:158: note: Following member(s) of "BufferedReader" have conflicts:
+ tests/test_wsgi.py:158: note: Expected:
+ tests/test_wsgi.py:158: note: def isatty(self) -> int
+ tests/test_wsgi.py:158: note: Got:
+ tests/test_wsgi.py:158: note: def isatty(self) -> bool
|
There are too many issues to make it enabled by default :( |
I went with an option (instead of an error code), because the was no specific error for this code.
I reuse existing rules / codes. The only change is a special case for
bool / int
subtyping check with an active flag.Closes #8363