-
+
<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.”
**[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 [pypy35|cpy27|cpy33|cpy34|cpy35|cpy36|cpy37|cpy38]
+ -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. [default: per-file
+ *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
### 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
-py36 = true
+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
- `X-Python-Variant`: if set to `pyi`, `blackd` will act as *Black* does when
passed the `--pyi` command line flag. Otherwise, its value must correspond to
a Python version or a set of comma-separated Python versions, optionally
- prefixed with `cpy` or `pypy`. For example, to request code that is compatible
- with PyPy 3.5 and CPython 3.5, set the header to `pypy3.5,cpy3.5`.
+ prefixed with `py`. For example, to request code that is compatible
+ with Python 3.5 and 3.6, set the header to `py3.5,py3.6`.
If any of these headers are set to invalid values, `blackd` returns a `HTTP 400`
error response, mentioning the name of the problematic header in the message body.
`.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
as .pyi, and whether string normalization was omitted.
+## 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).
+
+Are we missing anyone? Let us know.
+
+
## Testimonials
**Dusty Phillips**, [writer](https://smile.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=dusty+phillips):
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
-### 19.2b0
+### 19.5b0
+
+* don't crash when run on a Windows machine with more than 61 cores (#838)
+
+* remove unnecessary parentheses around `yield` expressions (#834)
+
+* add parentheses around long tuples in unpacking assignments (#832)
+
+* don't produce invalid code for `from` ... `import` blocks with comments
+ (#829)
+
+* fix grammar selection (#765)
+
+* fix feature detection for trailing commas in function definitions and
+ call sites (#763)
+
+* add `black -c` as a way to format code passed from the command line (#761)
-* *Black* no longer normalizes numeric literals to include `_` separators.
+* fix bug that led *Black* format some code with a line length target of 1
+ (#762)
+
+### 19.3b0
* new option `--target-version` to control which Python versions
- *Black*-formatted code should target
+ *Black*-formatted code should target (#618)
+
+* 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
* [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)
* [Jonas Obrist](mailto:ojiidotch@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