-
+
<h2 align="center">The Uncompromising Code Formatter</h2>
<p align="center">
-<a href="https://travis-ci.org/ambv/black"><img alt="Build Status" src="https://travis-ci.org/ambv/black.svg?branch=master"></a>
+<a href="https://travis-ci.org/python/black"><img alt="Build Status" src="https://travis-ci.org/python/black.svg?branch=master"></a>
<a href="https://black.readthedocs.io/en/stable/?badge=stable"><img alt="Documentation Status" src="https://readthedocs.org/projects/black/badge/?version=stable"></a>
-<a href="https://coveralls.io/github/ambv/black?branch=master"><img alt="Coverage Status" src="https://coveralls.io/repos/github/ambv/black/badge.svg?branch=master"></a>
-<a href="https://github.com/
ambv/black/blob/master/LICENSE"><img alt="License: MIT" src="https://black.readthedocs.io/en/stable/_static/license.svg"></a>
+<a href="https://coveralls.io/github/python/black?branch=master"><img alt="Coverage Status" src="https://coveralls.io/repos/github/python/black/badge.svg?branch=master"></a>
+<a href="https://github.com/
python/black/blob/master/LICENSE"><img alt="License: MIT" src="https://black.readthedocs.io/en/stable/_static/license.svg"></a>
<a href="https://pypi.org/project/black/"><img alt="PyPI" src="https://black.readthedocs.io/en/stable/_static/pypi.svg"></a>
<a href="https://pepy.tech/project/black"><img alt="Downloads" src="https://pepy.tech/badge/black"></a>
-<a href="https://github.com/
ambv/black"><img alt="Code style: black" src="https://img.shields.io/badge/code%20style-black-000000.svg"></a>
+<a href="https://github.com/
python/black"><img alt="Code style: black" src="https://img.shields.io/badge/code%20style-black-000000.svg"></a>
</p>
> “Any color you like.”
possible.
Try it out now using the [Black Playground](https://black.now.sh).
+Watch the [PyCon 2019 talk](https://youtu.be/esZLCuWs_2Y) to learn more.
---
**[blackd](#blackd)** |
**[Version control integration](#version-control-integration)** |
**[Ignoring unmodified files](#ignoring-unmodified-files)** |
+**[Used by](#used-by)** |
**[Testimonials](#testimonials)** |
**[Show your style](#show-your-style)** |
**[Contributing](#contributing-to-black)** |
black [OPTIONS] [SRC]...
Options:
+ -c, --code TEXT Format the code passed in as a string.
-l, --line-length INTEGER How many characters per line to allow.
[default: 88]
-t, --target-version [py27|py33|py34|py35|py36|py37|py38]
Python versions that should be supported by
Black's output. [default: per-file auto-
detection]
+ --py36 Allow using Python 3.6-only syntax on all
+ input files. This will put trailing commas
+ in function signatures and calls also after
+ *args and **kwargs. Deprecated; use
+ --target-version instead. [default: per-file
+ auto-detection]
--pyi Format all input files like typing stubs
regardless of file extension (useful when
piping source on standard input).
### NOTE: This is a beta product
-*Black* is already successfully used by several projects, small and big.
+*Black* is already [successfully used](#used-by) by many projects, small and big.
It also sports a decent test suite. However, it is still very new.
Things will probably be wonky for a while. This is made explicit by the
"Beta" trove classifier, as well as by the "b" in the version number.
Having one kind of quotes everywhere reduces reader distraction.
It will also enable a future version of *Black* to merge consecutive
string literals that ended up on the same line (see
-[#26](https://github.com/ambv/black/issues/26) for details).
+[#26](https://github.com/python/black/issues/26) for details).
Why settle on double quotes? They anticipate apostrophes in English
text. They match the docstring standard described in [PEP 257](https://www.python.org/dev/peps/pep-0257/#what-is-a-docstring).
```toml
[tool.black]
line-length = 88
-target_version = ['py37']
+target-version = ['py37']
include = '\.pyi?$'
exclude = '''
### Emacs
-Use [proofit404/blacken](https://github.com/proofit404/blacken).
+Use [proofit404/blacken](https://github.com/proofit404/blacken) or
+[Elpy](https://github.com/jorgenschaefer/elpy).
-### PyCharm
+### PyCharm/IntelliJ IDEA
1. Install `black`.
%LocalAppData%\Programs\Python\Python36-32\Scripts\black.exe # possible location
```
-3. Open External tools in PyCharm with `File -> Settings -> Tools -> External Tools`.
+3. Open External tools in PyCharm/IntelliJ IDEA
+
+ On macOS:
+
+```PyCharm -> Preferences -> Tools -> External Tools```
+
+ On Windows / Linux / BSD:
+
+```File -> Settings -> Tools -> External Tools```
4. Click the + icon to add a new external tool with the following values:
- Name: Black
- Description: Black is the uncompromising Python code formatter.
- Program: <install_location_from_step_2>
- - Arguments: `$FilePath$`
+ - Arguments: `"$FilePath$"`
5. Format the currently opened file by selecting `Tools -> External Tools -> black`.
- - Alternatively, you can set a keyboard shortcut by navigating to `Preferences -> Keymap -> External Tools -> External Tools - Black`.
+ - Alternatively, you can set a keyboard shortcut by navigating to `Preferences or Settings -> Keymap -> External Tools -> External Tools - Black`.
-6. Optionally, run Black on every file save:
+6. Optionally, run *Black* on every file save:
1. Make sure you have the [File Watcher](https://plugins.jetbrains.com/plugin/7177-file-watchers) plugin installed.
- 2. Go to `Preferences -> Tools -> File Watchers` and click `+` to add a new watcher:
+ 2. Go to `Preferences or Settings -> Tools -> File Watchers` and click `+` to add a new watcher:
- Name: Black
- File type: Python
- Scope: Project Files
- Program: <install_location_from_step_2>
- Arguments: `$FilePath$`
- - Output paths to refresh: `$FilePathRelativeToProjectRoot$`
+ - Output paths to refresh: `$FilePath$`
- Working directory: `$ProjectFileDir$`
- Uncheck "Auto-save edited files to trigger the watcher"
+
+
+### Wing IDE
+
+Wing supports black via the OS Commands tool, as explained in the Wing documentation on [pep8 formatting](https://wingware.com/doc/edit/pep8). The detailed procedure is:
+
+1. Install `black`.
+
+```console
+$ pip install black
+```
+
+2. Make sure it runs from the command line, e.g.
+
+```console
+$ black --help
+```
+
+3. In Wing IDE, activate the **OS Commands** panel and define the command **black** to execute black on the currently selected file:
+
+- Use the Tools -> OS Commands menu selection
+- click on **+** in **OS Commands** -> New: Command line..
+ - Title: black
+ - Command Line: black %s
+ - I/O Encoding: Use Default
+ - Key Binding: F1
+ - [x] Raise OS Commands when executed
+ - [x] Auto-save files before execution
+ - [x] Line mode
+
+4. Select a file in the editor and press **F1** , or whatever key binding you selected in step 3, to reformat the file.
+
### Vim
Commands and shortcuts:
To install with [vim-plug](https://github.com/junegunn/vim-plug):
```
-Plug 'ambv/black'
+Plug 'python/black'
```
or with [Vundle](https://github.com/VundleVim/Vundle.vim):
```
-Plugin 'ambv/black'
+Plugin 'python/black'
```
-or you can copy the plugin from [plugin/black.vim](https://github.com/ambv/black/tree/master/plugin/black.vim).
+or you can copy the plugin from [plugin/black.vim](https://github.com/python/black/tree/master/plugin/black.vim).
Let me know if this requires any changes to work with Vim 8's builtin
`packadd`, or Pathogen, and so on.
passed). *Black* will still emit messages on stderr but that shouldn't
affect your use case.
-This can be used for example with PyCharm's [File Watchers](https://www.jetbrains.com/help/pycharm/file-watchers.html).
+This can be used for example with PyCharm's or IntelliJ's [File Watchers](https://www.jetbrains.com/help/pycharm/file-watchers.html).
## blackd
-h, --help Show this message and exit.
```
+There is no official blackd client tool (yet!). You can test that blackd is
+working using `curl`:
+
+```
+blackd --bind-port 9090 & # or let blackd choose a port
+curl -s -XPOST "localhost:9090" -d "print('valid')"
+```
+
### Protocol
`blackd` only accepts `POST` requests at the `/` path. The body of the request
`.pre-commit-config.yaml` in your repository:
```yaml
repos:
-- repo: https://github.com/ambv/black
+- repo: https://github.com/python/black
rev: stable
hooks:
- id: black
Avoid using `args` in the hook. Instead, store necessary configuration
in `pyproject.toml` so that editors and command-line usage of Black all
-behave consistently for your project. See *Black*'s own `pyproject.toml`
+behave consistently for your project. See *Black*'s own [pyproject.toml](/pyproject.toml)
for an example.
If you're already using Python 3.7, switch the `language_version`
`file-mode` is an int flag that determines whether the file was formatted as 3.6+ only,
as .pyi, and whether string normalization was omitted.
+To override the location of these files on macOS or Linux, set the environment variable
+`XDG_CACHE_HOME` to your preferred location. For example, if you want to put the cache in
+the directory you're running *Black* from, set `XDG_CACHE_HOME=.cache`. *Black* will then
+write the above files to `.cache/black/<version>/`.
+
+## Used by
+
+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, Pipenv, virtualenv),
+every Datadog Agent Integration.
+
+Are we missing anyone? Let us know.
+
## Testimonials
Use the badge in your project's README.md:
```markdown
-[](https://github.com/ambv/black)
+[](https://github.com/python/black)
```
Using the badge in README.rst:
```
.. image:: https://img.shields.io/badge/code%20style-black-000000.svg
- :target: https://github.com/ambv/black
+ :target: https://github.com/python/black
```
-Looks like this: [](https://github.com/ambv/black)
+Looks like this: [](https://github.com/python/black)
## License
## Change Log
+### 19.5b0
+
+* added `black -c` as a way to format code passed from the command line
+ (#761)
+
+* --safe now works with Python 2 code (#840)
+
+* fixed grammar selection for Python 2-specific code (#765)
+
+* fixed feature detection for trailing commas in function definitions
+ and call sites (#763)
+
+* *Black* can now format async generators (#593)
+
+* *Black* no longer crashes on Windows machines with more than 61 cores
+ (#838)
+
+* *Black* no longer crashes on standalone comments prepended with
+ a backslash (#767)
+
+* *Black* no longer crashes on `from` ... `import` blocks with comments
+ (#829)
+
+* removed unnecessary parentheses around `yield` expressions (#834)
+
+* added parentheses around long tuples in unpacking assignments (#832)
+
+* fixed bug that led *Black* format some code with a line length target
+ of 1 (#762)
+
+* *Black* no longer introduces quotes in f-string subexpressions on string
+ boundaries (#863)
+
+
### 19.3b0
* new option `--target-version` to control which Python versions
*Black*-formatted code should target (#618)
-* removed `--py36` (use `--target-version=py36` instead) (#724)
+* deprecated `--py36` (use `--target-version=py36` instead) (#724)
* *Black* no longer normalizes numeric literals to include `_` separators (#696)
* long `del` statements are now split into multiple lines (#698)
+* type comments are no longer mangled in function signatures
+
* improved performance of formatting deeply nested data structures (#509)
+* *Black* now properly formats multiple files in parallel on
+ Windows (#632)
+
+* *Black* now creates cache files atomically which allows it to be used
+ in parallel pipelines (like `xargs -P8`) (#673)
+
+* *Black* now correctly indents comments in files that were previously
+ formatted with tabs (#262)
+
* `blackd` now supports CORS (#622)
+
### 18.9b0
* numeric literals are now formatted by *Black* (#452, #461, #464, #469):
Multiple contributions by:
* [Anthony Sottile](mailto:asottile@umich.edu)
* [Artem Malyshev](mailto:proofit404@gmail.com)
+* [Benjamin Woodruff](mailto:github@benjam.info)
* [Christian Heimes](mailto:christian@python.org)
* [Daniel M. Capella](mailto:polycitizen@gmail.com)
* [Eli Treuherz](mailto:eli@treuherz.com)
* hauntsaninja
* Hugo van Kemenade
* [Ivan Katanić](mailto:ivan.katanic@gmail.com)
+* [Jason Fried](mailto:me@jasonfried.info)
* [Jonas Obrist](mailto:ojiidotch@gmail.com)
* [Luka Sterbic](mailto:luka.sterbic@gmail.com)
* [Miguel Gaiowski](mailto:miggaiowski@gmail.com)
* [Peter Bengtsson](mailto:mail@peterbe.com)
* [Stavros Korokithakis](mailto:hi@stavros.io)
* [Sunil Kapil](mailto:snlkapil@gmail.com)
+* [Utsav Shah](mailto:ukshah2@illinois.edu)
* [Vishwas B Sharma](mailto:sharma.vishwas88@gmail.com)
* [Chuck Wooters](mailto:chuck.wooters@microsoft.com)
projects / etc / vim.git / blobdiff