Cleanup quality (#21493)

* Remove mentions of flake8/isort

* Clean up inits

* Deall with all other inits

* Last special rule for dummy files

Author: sgugger

.gitignore

@@ -163,4 +163,7 @@ tags
 *.lock
 
 # DS_Store (MacOS)
-.DS_Store
+.DS_Store
+
+# ruff
+.ruff_cache

CONTRIBUTING.md

@@ -1,4 +1,3 @@
-# flake8: noqa
 from .configuration_bert_masked import MaskedBertConfig
 from .modeling_bert_masked import (
     MaskedBertForMultipleChoice,

docs/source/en/add_new_model.mdx

@@ -1,3 +1,2 @@
-# flake8: noqa
 from .binarizer import MagnitudeBinarizer, ThresholdBinarizer, TopKBinarizer
 from .masked_nn import MaskedLinear

docs/source/en/pr_checks.mdx

@@ -8,6 +8,12 @@ ignore = ["E501", "E741", "W605"]
 select = ["E", "F", "I", "W"]
 line-length = 119
 
+# Ignore import violations in all `__init__.py` files.
+[tool.ruff.per-file-ignores]
+"__init__.py" = ["E402", "F401", "F403", "F811"]
+"src/transformers/file_utils.py" = ["F401"]
+"src/transformers/utils/dummy_*.py" = ["F401"]
+
 [tool.ruff.isort]
 lines-after-imports = 2
 known-first-party = ["transformers"]

docs/source/es/pr_checks.mdx

@@ -1,7 +1,3 @@
-# flake8: noqa
-# There's no way to ignore "F401 '...' imported but unused" warnings in this
-# module, but to preserve other warnings. So, don't check this module at all.
-
 # Copyright 2020 The HuggingFace Team. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");