-S, --skip-string-normalization
Don't normalize string quotes or prefixes.
+ -C, --skip-magic-trailing-comma
+ Don't use trailing commas as a reason to
+ split lines.
+
--check Don't write the files back, just return the
status. Return code 0 means nothing would
change. Return code 1 means some files
paths are excluded. Use forward slashes for
directories on all platforms (Windows, too).
Exclusions are calculated first, inclusions
- later. [default: /(\.eggs|\.git|\.hg|\.mypy
- _cache|\.nox|\.tox|\.venv|\.svn|_build|buck-
- out|build|dist)/]
+ later. [default: /(\.direnv|\.eggs|\.git|\.
+ hg|\.mypy_cache|\.nox|\.tox|\.venv|\.svn|_bu
+ ild|buck-out|build|dist)/]
--force-exclude TEXT Like --exclude, but files and directories
matching this regex will be excluded even
- when they are passed explicitly as arguments.
+ when they are passed explicitly as
+ arguments.
+
+ --stdin-filename TEXT The name of the file when passing it through
+ stdin. Useful to make sure Black will
+ respect --force-exclude option on some
+ editors that rely on using stdin.
-q, --quiet Don't emit non-error messages to stderr.
Errors are still emitted; silence those with
target-version = ['py37']
include = '\.pyi?$'
exclude = '''
-
-(
- /(
+# A regex preceded with ^/ will apply only to files and directories
+# in the root of the project.
+^/(
+ (
\.eggs # exclude a few common directories in the
| \.git # root of the project
| \.hg
- uses: actions/checkout@v2
- uses: actions/setup-python@v2
- uses: psf/black@stable
+ with:
+ black_args: ". --check"
```
+### Inputs
+
+#### `black_args`
+
+**optional**: Black input arguments. Defaults to `. --check --diff`.
+
## Ignoring unmodified files
_Black_ remembers files it has already formatted, unless the `--diff` flag is used or
The following notable open-source projects trust _Black_ with enforcing a consistent
code style: pytest, tox, Pyramid, Django Channels, Hypothesis, attrs, SQLAlchemy,
Poetry, PyPA applications (Warehouse, Bandersnatch, Pipenv, virtualenv), pandas, Pillow,
-every Datadog Agent Integration, Home Assistant.
+every Datadog Agent Integration, Home Assistant, Zulip.
The following organizations use _Black_: Facebook, Dropbox, Mozilla, Quora.