Recognize Self annotation and self assignment in SLF001#24144
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MichaReiser merged 2 commits intoastral-sh:mainfrom Mar 25, 2026
Merged
Recognize Self annotation and self assignment in SLF001#24144MichaReiser merged 2 commits intoastral-sh:mainfrom
Self annotation and self assignment in SLF001#24144MichaReiser merged 2 commits intoastral-sh:mainfrom
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Member
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Thank you. There's a second PR for the same issue. Would you mind taking a quick look at #24148 to see if it does something different from what you do here (or if this PR can be simplfied) that's worth accounting for? |
Contributor
Author
|
Thanks for the pointer. #24148 is already closed and only covers the This PR additionally handles variables assigned directly from |
MichaReiser
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Mar 25, 2026
MichaReiser
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MichaReiser
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Hmm okay, there are a few cases that aren't correctly handled:
from typing import Annotated, Self
class A:
def __init__(self) -> None:
self._x = 1
def f(self, other: Annotated[Self, "meta"]) -> None:
print(other._x) # still flaggedUnlike Annotated[A], Annotated[Self] isn't recognized
Allowing self is prone to false positives
class A:
@staticmethod
def f() -> None:
self = object()
alias = self
print(alias._x) # incorrectly allowed by this patch
|
| code | total | + violation | - violation | + fix | - fix |
|---|---|---|---|---|---|
| S603 | 10 | 10 | 0 | 0 | 0 |
| RUF100 | 5 | 5 | 0 | 0 | 0 |
| SLF001 | 3 | 0 | 3 | 0 | 0 |
Linter (preview)
ℹ️ ecosystem check detected linter changes. (+15 -5 violations, +0 -0 fixes in 5 projects; 51 projects unchanged)
apache/airflow (+9 -3 violations, +0 -0 fixes)
ruff check --no-cache --exit-zero --no-fix --output-format concise --preview --select ALL
- airflow-core/src/airflow/dag_processing/processor.py:534:9: SLF001 Private member accessed: `_on_child_started` + airflow-core/tests/unit/cli/test_cli_parser.py:648:18: S603 `subprocess` call: check for execution of untrusted input + airflow-core/tests/unit/cli/test_cli_parser.py:663:18: S603 `subprocess` call: check for execution of untrusted input + airflow-core/tests/unit/cli/test_cli_parser.py:678:18: S603 `subprocess` call: check for execution of untrusted input + airflow-core/tests/unit/utils/test_process_utils.py:128:19: S603 `subprocess` call: check for execution of untrusted input + airflow-core/tests/unit/utils/test_process_utils.py:137:19: S603 `subprocess` call: check for execution of untrusted input + airflow-ctl-tests/tests/airflowctl_tests/conftest.py:154:18: S603 `subprocess` call: check for execution of untrusted input - devel-common/src/tests_common/pytest_plugin.py:936:25: SLF001 Private member accessed: `_make_serdag` + scripts/in_container/run_prepare_airflow_distributions.py:73:23: S603 `subprocess` call: check for execution of untrusted input + scripts/in_container/verify_providers.py:782:16: S603 `subprocess` call: check for execution of untrusted input + task-sdk-integration-tests/tests/task_sdk_tests/conftest.py:364:18: S603 `subprocess` call: check for execution of untrusted input - task-sdk/src/airflow/sdk/execution_time/supervisor.py:1008:9: SLF001 Private member accessed: `_on_child_started`
bokeh/bokeh (+1 -0 violations, +0 -0 fixes)
ruff check --no-cache --exit-zero --no-fix --output-format concise --preview --select ALL
+ tests/codebase/test_python_execution_with_OO.py:45:12: S603 `subprocess` call: check for execution of untrusted input
langchain-ai/langchain (+0 -1 violations, +0 -0 fixes)
ruff check --no-cache --exit-zero --no-fix --output-format concise --preview
- libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_shell_tool.py:451:5: RUF072 [*] Empty `finally` clause
pytest-dev/pytest (+0 -1 violations, +0 -0 fixes)
ruff check --no-cache --exit-zero --no-fix --output-format concise --preview
- testing/test_link_resolve.py:49:5: RUF072 Empty `finally` clause
home-assistant/core (+5 -0 violations, +0 -0 fixes)
ruff check --no-cache --exit-zero --no-fix --output-format concise --preview
+ homeassistant/components/fritz/config_flow.py:201:48: RUF100 [*] Unused `noqa` directive (unused: `SLF001`) + homeassistant/components/fritzbox/config_flow.py:151:48: RUF100 [*] Unused `noqa` directive (unused: `SLF001`) + homeassistant/components/gogogate2/config_flow.py:78:60: RUF100 [*] Unused `noqa` directive (unused: `SLF001`) + homeassistant/components/webostv/config_flow.py:139:48: RUF100 [*] Unused `noqa` directive (unused: `SLF001`) + homeassistant/components/yeelight/config_flow.py:148:66: RUF100 [*] Unused `noqa` directive (unused: `SLF001`)
Changes by rule (4 rules affected)
| code | total | + violation | - violation | + fix | - fix |
|---|---|---|---|---|---|
| S603 | 10 | 10 | 0 | 0 | 0 |
| RUF100 | 5 | 5 | 0 | 0 | 0 |
| SLF001 | 3 | 0 | 3 | 0 | 0 |
| RUF072 | 2 | 0 | 2 | 0 | 0 |
Contributor
Author
|
Thanks for the review — both cases fixed:
Added test cases for both. |
SLF001 now suppresses false positives for: - Variables annotated as typing.Self (e.g. other: Self) - Variables assigned directly from self (e.g. this = self)
- Refactor match_annotation to unwrap Annotated before checking Self - Verify self is an Argument binding in match_initializer
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carljm
added a commit
that referenced
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Mar 25, 2026
* main: [ty] make `test-case` a dev-dependency (#24187) [ty] implement cycle normalization for more types to prevent too-many-cycle panics (#24061) [ty] Silence all diagnostics in unreachable code (#24179) [ty] Intern `InferableTypeVars` (#24161) Implement unnecessary-if (RUF050) (#24114) Recognize `Self` annotation and `self` assignment in SLF001 (#24144) Bump the npm version before publish (#24178) [ty] Disallow Self in metaclass and static methods (#23231) Use trusted publishing for NPM packages (#24171) [ty] Respect non-explicitly defined dataclass params (#24170) Add RUF072: warn when using operator on an f-string (#24162) [ty] Check return type of generator functions (#24026) Implement useless-finally (RUF-072) (#24165) [ty] Add test for a dataclass with a default field converter (#24169) [ty] Dataclass field converters (#23088) [flake8-bandit] Treat sys.executable as trusted input in S603 (#24106) [ty] Add support for `typing.Concatenate` (#23689) `ASYNC115`: autofix to use full qualified `anyio.lowlevel` import (#24166) [ty] Disallow read-only fields in TypedDict updates (#24128) Speed up diagnostic rendering (#24146)
nicopauss
pushed a commit
to Intersec/lib-common
that referenced
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Apr 1, 2026
##### [\`v0.15.8\`](https://github.com/astral-sh/ruff/blob/HEAD/CHANGELOG.md#0158) Released on 2026-03-26. ##### Preview features - \[`ruff`] New rule `unnecessary-if` (`RUF050`) ([#24114](astral-sh/ruff#24114)) - \[`ruff`] New rule `useless-finally` (`RUF072`) ([#24165](astral-sh/ruff#24165)) - \[`ruff`] New rule `f-string-percent-format` (`RUF073`): warn when using `%` operator on an f-string ([#24162](astral-sh/ruff#24162)) - \[`pyflakes`] Recognize `frozendict` as a builtin for Python 3.15+ ([#24100](astral-sh/ruff#24100)) ##### Bug fixes - \[`flake8-async`] Use fully-qualified `anyio.lowlevel` import in autofix (`ASYNC115`) ([#24166](astral-sh/ruff#24166)) - \[`flake8-bandit`] Check tuple arguments for partial paths in `S607` ([#24080](astral-sh/ruff#24080)) - \[`pyflakes`] Skip `undefined-name` (`F821`) for conditionally deleted variables ([#24088](astral-sh/ruff#24088)) - `E501`/`W505`/formatter: Exclude nested pragma comments from line width calculation ([#24071](astral-sh/ruff#24071)) - Fix `%foo?` parsing in IPython assignment expressions ([#24152](astral-sh/ruff#24152)) - `analyze graph`: resolve string imports that reference attributes, not just modules ([#24058](astral-sh/ruff#24058)) ##### Rule changes - \[`eradicate`] ignore `ty: ignore` comments in `ERA001` ([#24192](astral-sh/ruff#24192)) - \[`flake8-bandit`] Treat `sys.executable` as trusted input in `S603` ([#24106](astral-sh/ruff#24106)) - \[`flake8-self`] Recognize `Self` annotation and `self` assignment in `SLF001` ([#24144](astral-sh/ruff#24144)) - \[`pyflakes`] `F507`: Fix false negative for non-tuple RHS in `%`-formatting ([#24142](astral-sh/ruff#24142)) - \[`refurb`] Parenthesize generator arguments in `FURB142` fixer ([#24200](astral-sh/ruff#24200)) ##### Performance - Speed up diagnostic rendering ([#24146](astral-sh/ruff#24146)) ##### Server - Warn when Markdown files are skipped due to preview being disabled ([#24150](astral-sh/ruff#24150)) ##### Documentation - Clarify `extend-ignore` and `extend-select` settings documentation ([#24064](astral-sh/ruff#24064)) - Mention AI policy in PR template ([#24198](astral-sh/ruff#24198)) ##### Other changes - Use trusted publishing for NPM packages ([#24171](astral-sh/ruff#24171)) ##### Contributors - [@bitloi](https://github.com/bitloi) - [@Sim-hu](https://github.com/Sim-hu) - [@mvanhorn](https://github.com/mvanhorn) - [@chinar-amrutkar](https://github.com/chinar-amrutkar) - [@markjm](https://github.com/markjm) - [@RenzoMXD](https://github.com/RenzoMXD) - [@vivekkhimani](https://github.com/vivekkhimani) - [@seroperson](https://github.com/seroperson) - [@moktamd](https://github.com/moktamd) - [@charliermarsh](https://github.com/charliermarsh) - [@ntBre](https://github.com/ntBre) - [@zanieb](https://github.com/zanieb) - [@dylwil3](https://github.com/dylwil3) - [@MichaReiser](https://github.com/MichaReiser) Renovate-Branch: renovate/2024.6-ruff-0.15.x Change-Id: Ifd4216a963962ffb24a4df69802bc60fcc29628d Priv-Id: 46d2f61be3a5e65a9fdd2fef998ba41ea3388f12
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Fixes #24140
SLF001 now suppresses false positives for two additional same-class patterns:
typing.Self(e.g.other: Self)self(e.g.this = self)Both cases clearly refer to the same class instance and should not trigger a private member access warning.