X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/36d3c516d3c09fc5f05c420900dd6b854e3c8bbd..448885b256ca1741fda7c4ef17f80f750ea614c0:/README.md?ds=inline diff --git a/README.md b/README.md index bd6ebcd..66e8633 100644 --- a/README.md +++ b/README.md @@ -1,14 +1,14 @@ -![Black Logo](https://raw.githubusercontent.com/ambv/black/master/docs/_static/logo2-readme.png) +![Black Logo](https://raw.githubusercontent.com/python/black/master/docs/_static/logo2-readme.png)

The Uncompromising Code Formatter

-Build Status +Build Status Documentation Status -Coverage Status -License: MIT +Coverage Status +License: MIT PyPI Downloads -Code style: black +Code style: black

> “Any color you like.” @@ -28,6 +28,7 @@ content instead. 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. --- @@ -38,6 +39,7 @@ Try it out now using the [Black Playground](https://black.now.sh). **[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)** | @@ -71,25 +73,24 @@ black {source_file_or_directory} 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 piping source on standard input). -S, --skip-string-normalization Don't normalize string quotes or prefixes. - -N, --skip-numeric-underscore-normalization - Don't normalize underscores in numeric - literals. --check Don't write the files back, just return the status. Return code 0 means nothing would change. Return code 1 means some files @@ -138,7 +139,7 @@ Options: ### 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. @@ -192,12 +193,12 @@ brackets and put that in a separate indented line. ```py3 # in: -TracebackException.from_exception(exc, limit, lookup_lines, capture_locals) +ImportantClass.important_method(exc, limit, lookup_lines, capture_locals, extra_argument) # out: -TracebackException.from_exception( - exc, limit, lookup_lines, capture_locals +ImportantClass.important_method( + exc, limit, lookup_lines, capture_locals, extra_argument ) ``` @@ -211,7 +212,7 @@ separate lines. ```py3 # in: -def very_important_function(template: str, *variables, file: os.PathLike, debug: bool = False): +def very_important_function(template: str, *variables, file: os.PathLike, engine: str, header: bool = True, debug: bool = False): """Applies `variables` to the `template` and writes to `file`.""" with open(file, 'w') as f: ... @@ -222,6 +223,8 @@ def very_important_function( template: str, *variables, file: os.PathLike, + engine: str, + header: bool = True, debug: bool = False, ): """Applies `variables` to the `template` and writes to `file`.""" @@ -370,7 +373,7 @@ The main reason to standardize on a single form of quotes is aesthetics. 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). @@ -395,14 +398,8 @@ an adoption helper, avoid using this for new projects. *Black* standardizes most numeric literals to use lowercase letters for the syntactic parts and uppercase letters for the digits themselves: `0xAB` instead of `0XAB` and `1e10` instead of `1E10`. Python 2 long literals are -styled as `2L` instead of `2l` to avoid confusion between `l` and `1`. In -Python 3.6+, *Black* adds underscores to long numeric literals to aid -readability: `100000000` becomes `100_000_000`. +styled as `2L` instead of `2l` to avoid confusion between `l` and `1`. -For regions where numerals are grouped differently (like [India](https://en.wikipedia.org/wiki/Indian_numbering_system) -and [China](https://en.wikipedia.org/wiki/Chinese_numerals#Whole_numbers)), -the `-N` or `--skip-numeric-underscore-normalization` command line option -makes *Black* preserve underscores in numeric literals. ### Line breaks & binary operators @@ -583,7 +580,7 @@ to denote a significant space character. ```toml [tool.black] line-length = 88 -py36 = true +target-version = ['py37'] include = '\.pyi?$' exclude = ''' @@ -623,10 +620,11 @@ configuration from different levels of the file hierarchy. ### 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`. @@ -650,28 +648,69 @@ $ where 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: - - 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: - 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 @@ -691,16 +730,16 @@ Configuration: 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. @@ -772,7 +811,7 @@ The formatted code will be returned on stdout (unless `--check` was 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 @@ -823,15 +862,13 @@ The headers controlling how code is formatted are: - `X-Skip-String-Normalization`: corresponds to the `--skip-string-normalization` command line flag. If present and its value is not the empty string, no string normalization will be performed. - - `X-Skip-Numeric-Underscore-Normalization`: corresponds to the - `--skip-numeric-underscore-normalization` command line flag. - `X-Fast-Or-Safe`: if set to `fast`, `blackd` will act as *Black* does when passed the `--fast` command line flag. - `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. @@ -855,7 +892,7 @@ installed](https://pre-commit.com/#install), add this to the `.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 @@ -889,6 +926,15 @@ is: 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): @@ -915,16 +961,16 @@ and [`pipenv`](https://docs.pipenv.org/): Use the badge in your project's README.md: ```markdown -[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/ambv/black) +[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](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: [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/ambv/black) +Looks like this: [![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/python/black) ## License @@ -950,10 +996,57 @@ More details can be found in [CONTRIBUTING](CONTRIBUTING.md). ## Change Log -### 18.11b0 +### 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) + +* fix bug that led *Black* format some code with a line length target of 1 + (#762) + +* --safe now works with Python 2 code (#840) + +* *Black* no longer crashes on standalone comments prepended with + a backslash (#767) + +### 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 @@ -1361,8 +1454,10 @@ Multiple contributions by: * [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) @@ -1372,5 +1467,6 @@ Multiple contributions by: * [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)