```{contents}
:local:
:backlinks: none
+:class: this-will-duplicate-information-and-it-is-still-useful-here
```
+## Why spaces? I prefer tabs
+
+PEP 8 recommends spaces over tabs, and they are used by most of the Python community.
+_Black_ provides no options to configure the indentation style, and requests for such
+options will not be considered.
+
+However, we recognise that using tabs is an accessibility issue as well. While the
+option will never be added to _Black_, visually impaired developers may find conversion
+tools such as `expand/unexpand` (for Linux) useful when contributing to Python projects.
+A workflow might consist of e.g. setting up appropriate pre-commit and post-merge git
+hooks, and scripting `unexpand` to run after applying _Black_.
+
## Does Black have an API?
Not yet. _Black_ is fundamentally a command line tool. Many
## Is Black safe to use?
-Yes, for the most part. _Black_ is strictly about formatting, nothing else. But because
-_Black_ is still in [beta](index.rst), some edges are still a bit rough. To combat
-issues, the equivalence of code after formatting is
+Yes. _Black_ is strictly about formatting, nothing else. Black strives to ensure that
+after formatting the AST is
[checked](the_black_code_style/current_style.md#ast-before-and-after-formatting) with
limited special cases where the code is allowed to differ. If issues are found, an error
is raised and the file is left untouched. Magical comments that influence linters and
## How stable is Black's style?
-Quite stable. _Black_ aims to enforce one style and one style only, with some room for
-pragmatism. However, _Black_ is still in beta so style changes are both planned and
-still proposed on the issue tracker. See
-[The Black Code Style](the_black_code_style/index.rst) for more details.
+Stable. _Black_ aims to enforce one style and one style only, with some room for
+pragmatism. See [The Black Code Style](the_black_code_style/index.rst) for more details.
Starting in 2022, the formatting output will be stable for the releases made in the same
year (other than unintentional bugs). It is possible to opt-in to the latest formatting
-styles, using the `--future` flag.
+styles, using the `--preview` flag.
## Why is my file not formatted?
disabled-by-default counterpart W504. E203 should be disabled while changes are still
[discussed](https://github.com/PyCQA/pycodestyle/issues/373).
-## Does Black support Python 2?
+## Which Python versions does Black support?
-```{warning}
-Python 2 support has been deprecated since 21.10b0.
-
-This support will be dropped in the first stable release, expected for January 2022.
-See [The Black Code Style](the_black_code_style/index.rst) for details.
-```
+Currently the runtime requires Python 3.6-3.10. Formatting is supported for files
+containing syntax from Python 3.3 to 3.10. We promise to support at least all Python
+versions that have not reached their end of life. This is the case for both running
+_Black_ and formatting code.
-For formatting, yes! [Install](getting_started.md#installation) with the `python2` extra
-to format Python 2 files too! In terms of running _Black_ though, Python 3.6 or newer is
-required.
+Support for formatting Python 2 code was removed in version 22.0. While we've made no
+plans to stop supporting older Python 3 minor versions immediately, their support might
+also be removed some time in the future without a deprecation period.
## Why does my linter or typechecker complain after I format my code?
## Can I run Black with PyPy?
-Yes, there is support for PyPy 3.7 and higher. You cannot format Python 2 files under
-PyPy, because PyPy's inbuilt ast module does not support this.
+Yes, there is support for PyPy 3.7 and higher.
## Why does Black not detect syntax errors in my code?
projects / etc / vim.git / blobdiff