Skip to main content

Safe, atomic formatting with black and µsort

Project description

µfmt

Safe, atomic formatting with black and µsort

version documentation changelog license build status code coverage

µfmt is a safe, atomic code formatter for Python built on top of black and µsort:

Black makes code review faster by producing the smallest diffs possible. Blackened code looks the same regardless of the project you’re reading.

μsort is a safe, minimal import sorter. Its primary goal is to make no “dangerous” changes to code, and to make no changes on code style.

µfmt formats files in-memory, first with µsort and then with black, before writing any changes back to disk. This enables a combined, atomic step in CI/CD workflows for checking or formatting files, without any with conflict or intermediate changes between the import sorter and the code formatter.

Install

µfmt requires Python 3.6 or newer. You can install it from PyPI:

$ pip install ufmt

If you want to prevent unexpected formatting changes that can break your CI workflow, make sure to pin your transitive dependencies–including black, µsort, and µfmt–to your preferred versions.

If you use requirements.txt, this might look like:

black==20.8b1
ufmt==1.2
usort==0.6.3

Usage

To format one or more files or directories in place:

$ ufmt format <path> [<path> ...]

To validate files are formatted correctly, like for CI workflows:

$ ufmt check <path> [<path> ...]

To validate formatting and generate a diff of necessary changes:

$ ufmt diff <path> [<path> ...]

License

µfmt is copyright John Reese, and licensed under the MIT license. I am providing code in this repository to you under an open source license. This is my personal repository; the license you receive to my code is from me and not from my employer. See the LICENSE file for details.

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for ufmt, version 1.2.1
Filename, size File type Python version Upload date Hashes
Filename, size ufmt-1.2.1-py3-none-any.whl (8.9 kB) File type Wheel Python version py3 Upload date Hashes View
Filename, size ufmt-1.2.1.tar.gz (11.1 kB) File type Source Python version None Upload date Hashes View

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring DigiCert DigiCert EV certificate Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page