Updating contributing guide

CONTRIBUTING.rst

@@ -35,10 +35,11 @@ ideal report includes:
 
 Codestyle
 ---------
-This project uses flake8 to enforce codstyle requirements. We've codified this
-process using a tool called `pre-commit <https://pre-commit.com/>`__. pre-commit
-allows us to specify a config file with all tools required for code linting,
-and surfaces either a git commit hook, or single command, for enforcing these.
+This project uses `ruff <https://github.com/astral-sh/ruff>`__ to enforce
+codstyle requirements. We've codified this process using a tool called
+`pre-commit <https://pre-commit.com/>`__. pre-commit allows us to specify a
+config file with all tools required for code linting, and surfaces either a
+git commit hook, or single command, for enforcing these.
 
 To validate your PR prior to publishing, you can use the following
 `installation guide <https://pre-commit.com/#install>`__ to setup pre-commit.
@@ -51,10 +52,7 @@ to automatically perform the codestyle validation:
     $ pre-commit run
 
 This will automatically perform simple updates (such as white space clean up)
-and provide a list of any failing flake8 checks. After these are addressed,
+and provide a list of any failing checks. After these are addressed,
 you can commit the changes prior to publishing the PR.
-These checks are also included in our CI setup under the "Lint" workflow which will provide output on Github for anything missed locally.
-
-See the `flake8` section of the
-`setup.cfg <https://github.com/boto/s3transfer/blob/develop/setup.cfg>`__ for the
-currently enforced rules.
+These checks are also included in our CI setup under the "Lint" workflow which
+will provide output on Github for anything missed locally.

setup.cfg

@@ -7,6 +7,3 @@ requires_dist =
 
 [options.extras_require]
 crt = botocore[crt]>=1.33.2,<2.0a0
-
-[flake8]
-ignore = E203,E226,E501,W503,W504