swap black to ruff

.flake8

@@ -4,7 +4,9 @@
 # length, but can go over in some cases.
 # W503 goes against PEP8 rules. It's disabled by default, but must be disabled
 # explicitly when using `ignore`.
-ignore = E501, W503
+# E704 is disabled in the default configuration, but by specifying `ignore`, we wipe that out.
+# ruff formatting creates code that violates it, so we have to disable it manually
+ignore = E501, W503, E704
 per-file-ignores =
     */__init__.py: IMP100, E402, F401
     # we test various import patterns

README.md

@@ -369,7 +369,7 @@ Run the linter with:
 make lint
 ```
 
-The library uses [Black][black] for code formatting. Code must be formatted
+The library uses [Ruff][ruff] for code formatting. Code must be formatted
 with Black before PRs are submitted, otherwise CI will fail. Run the formatter
 with:
 
@@ -378,7 +378,7 @@ make fmt
 ```
 
 [api-keys]: https://dashboard.stripe.com/account/apikeys
-[black]: https://github.com/ambv/black
+[ruff]: https://github.com/astral-sh/ruff
 [connect]: https://stripe.com/connect
 [poetry]: https://github.com/sdispater/poetry
 [stripe-mock]: https://github.com/stripe/stripe-mock

pyproject.toml

@@ -1,33 +1,18 @@
-[tool.black]
+[tool.ruff]
+# same as our black config
 line-length = 79
-target-version = [
-  "py35",
-  "py36",
-  "py37",
-  "py38",
-  "py39",
-  "py310",
-  #   "py311",  # black 21.12b0 doesn't
-  #   "py312",  # support these targets
-]
-exclude = '''
-/(
-    \.eggs/
-  | \.git/
-  | \.tox/
-  | \.venv/
-  | _build/
-  | build/
-  | dist/
-  | venv/
-)
-'''
+extend-exclude = ["build"]
+
+[tool.ruff.format]
+# currently the default value, but opt-out in the future
+docstring-code-format = false
+
 [tool.pyright]
 include = [
   "stripe",
   "tests/test_generated_examples.py",
   "tests/test_exports.py",
-  "tests/test_http_client.py"
+  "tests/test_http_client.py",
 ]
 exclude = ["build", "**/__pycache__"]
 reportMissingTypeArgument = true

requirements.txt

@@ -5,7 +5,7 @@ tox == 4.5.0
 #Virtualenv 20.22.0 dropped support for all Python versions smaller or equal to Python 3.6.
 virtualenv<20.22.0
 pyright == 1.1.336
-black == 22.8.0
+ruff == 0.4.4
 flake8
 mypy == 1.7.0
 

tox.ini

@@ -39,7 +39,7 @@ skip_install = true
 commands =
   pyright: pyright {posargs}
   lint: python -m flake8  --show-source stripe tests setup.py
-  fmt: black . {posargs}
+  fmt: ruff format . {posargs}
   mypy: mypy {posargs}
 deps =
   -r requirements.txt