0. Требования

0.1 Установленный python
0.2 Установленный rust с cargo
0.3 Открытая консоль

1. Подготовка

1.1 mkdir pycon
1.2 cd pycon
1.3 mkdir envs
1.4 python -m venv envs/pycon
1.5 source envs/pycon/bin/activate
1.6 ls

2. Проект

2.1 git clone https://github.com/verzhak/pycon2025
2.2 cd project
2.3 pip install -e .
2.4 Смотрим файлы проекта
2.5 cd ..

3. PyLint

3.1 pip install pylint
3.2 mkdir -p pylint/pycon
3.3 cd pylint
3.4 Редактируем pyproject.toml
3.5 Редактируем pycon/__init__.py и pycon/plugin.py
3.6 pip install -e .
3.7 cd ..
3.8 python -m pylint -E -d no-member --unsafe-load-any-extension=y --extension-pkg-allow-list=typing --load-plugins pycon.plugin project/project

4. Ruff

4.1 git clone --branch 0.11.8 https://github.com/astral-sh/ruff.git
4.2 cd ruff
4.3 git switch -c pycon
4.4 Обсуждаем, какие ошибки реализуем (исходя из плагина для pylint):

"E9001" : ( "Deprecated import", "pycon-deprecated-typing-import", "Deprecated import" ),
"E9002" : ( "Deprecated import", "pycon-deprecated-import", "Deprecated import" ),
"E9003" : ( "Args without type", "pycon-args-without-type", "Args without type" ),
"E9004" : ( "Function without return definition", "pycon-function-without-return-definition", "Function without return definition" ),
"E9100" : ( "AttributeError", "pycon-deprecated-attribute-error", "AttributeError is a deprecated replacement for cached_property" ),

4.5 Создаем crate:

crates/ruff_linter/src/rules/pylint/rules/pycon.rs

Последовательность:

"E9100" : ( "AttributeError", "pycon-deprecated-attribute-error", "AttributeError is a deprecated replacement for cached_property" ),
"E9002" : ( "Deprecated import", "pycon-deprecated-import", "Deprecated import" ),
"E9001" : ( "Deprecated import", "pycon-deprecated-typing-import", "Deprecated import" ),
"E9003" : ( "Args without type", "pycon-args-without-type", "Args without type" ),
"E9004" : ( "Function without return definition", "pycon-function-without-return-definition", "Function without return definition" ),

4.6 Добавляем crate в mod.rs:

crates/ruff_linter/src/rules/pylint/rules/mod.rs

4.7 Добавляем вызовы в обход AST:

crates/ruff_linter/src/checkers/ast/analyze/statement.rs

4.8 Добавляем коды правил в codes.rs и schema:

crates/ruff_linter/src/codes.rs
ruff.schema.json

4.9 Пробуем собрать:

cargo build

4.10 Запускаем:

cargo run -- check --preview --ignore ALL --select PLE9100,PLE9001,PLE9002,PLE9003,PLE9004 --no-cache ../project/project

4.11 Собираем и запускаем оптимизированную версию:

cargo build --release
target/release/ruff check --preview --ignore ALL --select PLE9100,PLE9001,PLE9002,PLE9003,PLE9004 --no-cache ../project/project