``--fast``.
+## Installation
+
+*Black* can be installed by running `pip install black`. It requires
+Python 3.6.0+ to run but you can reformat Python 2 code with it, too.
+*Black* is able to parse all of the new syntax supported on Python 3.6
+but also *effectively all* the Python 2 syntax at the same time.
+
+
## Usage
-*Black* can be installed by running `pip install black`.
```
black [OPTIONS] [SRC]...
Options:
-l, --line-length INTEGER Where to wrap around. [default: 88]
--check Don't write back the files, just return the
- status. Return code 0 means nothing changed.
- Return code 1 means some files were reformatted.
- Return code 123 means there was an internal
- error.
+ status. Return code 0 means nothing would
+ change. Return code 1 means some files would be
+ reformatted. Return code 123 means there was an
+ internal error.
--fast / --safe If --fast given, skip temporary sanity checks.
[default: --safe]
--version Show the version and exit.
* it does nothing if no sources are passed to it;
* it will read from standard input and write to standard output if `-`
is used as the filename;
-* it only outputs messages to users on standard error.
+* it only outputs messages to users on standard error;
+* exits with code 0 unless an internal error occured (or `--check` was
+ used).
## The philosophy behind *Black*
Looks like this: [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/ambv/black)
-
-## Tests
-
-Just run:
-
-```
-python setup.py test
-```
-
-## This tool requires Python 3.6.0+ to run
-
-But you can reformat Python 2 code with it, too. *Black* is able to parse
-all of the new syntax supported on Python 3.6 but also *effectively all*
-the Python 2 syntax at the same time, as long as you're not using print
-statements.
-
-By making the code exclusively Python 3.6+, I'm able to focus on the
-quality of the formatting and re-use all the nice features of the new
-releases (check out [pathlib](https://docs.python.org/3/library/pathlib.html) or
-f-strings) instead of wasting cycles on Unicode compatibility, and so on.
-
-
## License
MIT
### 18.3a4 (unreleased)
+* `# fmt: off` and `# fmt: on` are implemented (#5)
+
+* automatic detection of deprecated Python 2 forms of print statements
+ and exec statements in the formatted file (#49)
+
+* use proper spaces for complex expressions in default values of typed
+ function arguments (#60)
+
+* only return exit code 1 when --check is used (#50)
+
+* don't remove single trailing commas from square bracket indexing
+ (#59)
+
* don't omit whitespace if the previous factor leaf wasn't a math
operator (#55)
* omit extra space in kwarg unpacking if it's the first argument (#46)
+* omit extra space in [Sphinx auto-attribute comments](http://www.sphinx-doc.org/en/stable/ext/autodoc.html#directive-autoattribute)
+ (#68)
+
### 18.3a3
## Authors
Glued together by [Łukasz Langa](mailto:lukasz@langa.pl).
+
+[Model T logo](https://thenounproject.com/term/model-t/16785/) by Alex
+Valdivia from the Noun Project.