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+[](https://black.readthedocs.io/en/stable/)
+
+
The Uncompromising Code Formatter
+
+
+
+
+
+
+
+
+
+
+
+
+
+> “Any color you like.”
+
+_Black_ is the uncompromising Python code formatter. By using it, you agree to cede
+control over minutiae of hand-formatting. In return, _Black_ gives you speed,
+determinism, and freedom from `pycodestyle` nagging about formatting. You will save time
+and mental energy for more important matters.
+
+Blackened code looks the same regardless of the project you're reading. Formatting
+becomes transparent after a while and you can focus on the content instead.
+
+_Black_ makes code review faster by producing the smallest diffs possible.
+
+Watch the [PyCon 2019 talk](https://youtu.be/esZLCuWs_2Y) to learn more.
+
+---
+
+**[Read the documentation on ReadTheDocs!](https://black.readthedocs.io/en/stable)**
+
+---
+
+## Installation and usage
+
+### Installation
+
+_Black_ can be installed by running `pip install black`. It requires Python 3.10+ to
+run. If you want to format Jupyter Notebooks, install with
+`pip install "black[jupyter]"`.
+
+If you want to run _Black_ without installing Python, download one of the
+PyInstaller-built standalone executables from the
+[latest GitHub release](https://github.com/psf/black/releases/latest).
+
+### Usage
+
+To get started right away with sensible defaults:
+
+```sh
+black {source_file_or_directory}
+```
+
+You can run _Black_ as a package if running it as a script doesn't work:
+
+```sh
+python -m black {source_file_or_directory}
+```
+
+Further information can be found in our docs:
+
+- [Usage and Configuration](https://black.readthedocs.io/en/stable/usage_and_configuration/index.html)
+
+_Black_ is already [successfully used](https://github.com/psf/black#used-by) by many
+projects, small and big. _Black_ has a comprehensive test suite, with efficient parallel
+tests, and our own auto formatting and parallel Continuous Integration runner. Now that
+we have become stable, you should not expect large formatting changes in the future.
+Stylistic changes will mostly be responses to bug reports and support for new Python
+syntax. For more information please refer to
+[The Black Code Style](https://black.readthedocs.io/en/stable/the_black_code_style/index.html).
+
+Also, as a safety measure which slows down processing, _Black_ will check that the
+reformatted code still produces a valid AST that is effectively equivalent to the
+original (see the
+[Pragmatism](https://black.readthedocs.io/en/stable/the_black_code_style/current_style.html#ast-before-and-after-formatting)
+section for details). If you're feeling confident, use `--fast`.
+
+## The _Black_ code style
+
+_Black_ is a PEP 8 compliant opinionated formatter. _Black_ reformats entire files in
+place. Style configuration options are deliberately limited and rarely added. It doesn't
+take previous formatting into account (see
+[Pragmatism](https://black.readthedocs.io/en/stable/the_black_code_style/current_style.html#pragmatism)
+for exceptions).
+
+Our documentation covers the current _Black_ code style, but planned changes to it are
+also documented. They're both worth taking a look at:
+
+- [The _Black_ Code Style: Current style](https://black.readthedocs.io/en/stable/the_black_code_style/current_style.html)
+- [The _Black_ Code Style: Future style](https://black.readthedocs.io/en/stable/the_black_code_style/future_style.html)
+
+Changes to the _Black_ code style are bound by the Stability Policy:
+
+- [The _Black_ Code Style: Stability Policy](https://black.readthedocs.io/en/stable/the_black_code_style/index.html#stability-policy)
+
+Please refer to this document before submitting an issue. What seems like a bug might be
+intended behaviour.
+
+### Pragmatism
+
+Early versions of _Black_ used to be absolutist in some respects. They took after its
+initial author. This was fine at the time as it made the implementation simpler and
+there were not many users anyway. Not many edge cases were reported. As a mature tool,
+_Black_ does make some exceptions to rules it otherwise holds.
+
+- [The _Black_ code style: Pragmatism](https://black.readthedocs.io/en/stable/the_black_code_style/current_style.html#pragmatism)
+
+Please refer to this document before submitting an issue just like with the document
+above. What seems like a bug might be intended behaviour.
+
+## Configuration
+
+_Black_ is able to read project-specific default values for its command line options
+from a `pyproject.toml` file. This is especially useful for specifying custom
+`--include` and `--exclude`/`--force-exclude`/`--extend-exclude` patterns for your
+project.
+
+You can find more details in our documentation:
+
+- [The basics: Configuration via a file](https://black.readthedocs.io/en/stable/usage_and_configuration/the_basics.html#configuration-via-a-file)
+
+And if you're looking for more general configuration documentation:
+
+- [Usage and Configuration](https://black.readthedocs.io/en/stable/usage_and_configuration/index.html)
+
+**Pro-tip**: If you're asking yourself "Do I need to configure anything?" the answer is
+"No". _Black_ is all about sensible defaults. Applying those defaults will have your
+code in compliance with many other _Black_ formatted projects.
+
+## Used by
+
+The following notable open-source projects trust _Black_ with enforcing a consistent
+code style: pytest, tox, Pyramid, Django, Django Channels, Hypothesis, attrs,
+SQLAlchemy, Poetry, PyPA applications (Warehouse, Bandersnatch, Pipenv, virtualenv),
+pandas, Pillow, Twisted, LocalStack, every Datadog Agent Integration, Home Assistant,
+Zulip, Kedro, OpenOA, FLORIS, ORBIT, WOMBAT, and many more.
+
+The following organizations use _Black_: Dropbox, KeepTruckin, Lyft, Mozilla, Quora,
+Duolingo, QuantumBlack, Tesla, Archer Aviation.
+
+Are we missing anyone? Let us know.
+
+## Testimonials
+
+**Mike Bayer**, creator of [`SQLAlchemy`](https://www.sqlalchemy.org/):
+
+> I can't think of any single tool in my entire programming career that has given me a
+> bigger productivity increase by its introduction. I can now do refactorings in about
+> 1% of the keystrokes that it would have taken me previously when we had no way for
+> code to format itself.
+
+**Dusty Phillips**,
+[writer](https://www.amazon.com/stores/Dusty-Phillips/author/B00HSYG5BO):
+
+> _Black_ is opinionated so you don't have to be.
+
+**Hynek Schlawack**, creator of [`attrs`](https://www.attrs.org/), core developer of
+Twisted and CPython:
+
+> An auto-formatter that doesn't suck is all I want for Xmas!
+
+**Carl Meyer**, [Django](https://www.djangoproject.com/) core developer:
+
+> At least the name is good.
+
+**Kenneth Reitz**, creator of [`requests`](https://requests.readthedocs.io/en/stable/)
+and [pipenv](https://pipenv.pypa.io/en/stable/):
+
+> This vastly improves the formatting of our code. Thanks a ton!
+
+## Show your style
+
+Use the badge in your project's README.md:
+
+```md
+[](https://github.com/psf/black)
+```
+
+Using the badge in README.rst:
+
+```rst
+.. image:: https://img.shields.io/badge/code%20style-black-000000.svg
+ :target: https://github.com/psf/black
+```
+
+Looks like this:
+[](https://github.com/psf/black)
+
+## License
+
+MIT
+
+## Contributing
+
+Welcome! Happy to see you willing to make the project better. You can get started by
+reading this:
+
+- [Contributing: The basics](https://black.readthedocs.io/en/latest/contributing/the_basics.html)
+
+You can also take a look at the rest of the contributing docs or talk with the
+developers:
+
+- [Contributing documentation](https://black.readthedocs.io/en/latest/contributing/index.html)
+- [Chat on Discord](https://discord.gg/RtVdv86PrH)
+
+## Change log
+
+The log has become rather long. It moved to its own file.
+
+See [CHANGES](https://black.readthedocs.io/en/latest/change_log.html).
+
+## Authors
+
+The author list is quite long nowadays, so it lives in its own file.
+
+See [AUTHORS.md](./AUTHORS.md)
+
+## Code of Conduct
+
+Everyone participating in the _Black_ project, and in particular in the issue tracker,
+pull requests, and social media activity, is expected to treat other people with respect
+and more generally to follow the guidelines articulated in the
+[Python Community Code of Conduct](https://www.python.org/psf/codeofconduct/).
+
+At the same time, humor is encouraged. In fact, basic familiarity with Monty Python's
+Flying Circus is expected. We are not savages.
+
+And if you _really_ need to slap somebody, do it with a fish while dancing.