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A simple, correct Python build frontend.
See the documentation for more information.
build
can be installed via pip
or an equivalent via:
$ pip install build
$ python -m build
This will build the package in an isolated environment, generating a
source-distribution and wheel in the directory dist/
.
See the documentation for full information.
--sdist
(-s
): Produce just an SDist--wheel
(-w
): Produce just a wheel-C<option>=<value>
: A Config-setting, the PEP 517 way of passing options to a backend. Can be passed multiple times. Matching options will make a list. Note that setuptools has very limited support.--installer
: Pick an installer for the isolated build (pip
or uv
).--no-isolation
(-n
): Disable build isolation.--skip-dependency-check
(-x
): Disable dependency checking when not isolated; this should be done if some requirements or version ranges are not required for non-isolated builds.--outdir
(-o
): The output directory (defaults to dist
)Some common combinations of arguments:
--sdist --wheel
(-sw
): Produce and SDist and a wheel, both from the source distribution. The default (if no flag is passed) is to build an SDist and then build a wheel from the SDist.-nx
: Disable build isolation and dependency checking. Identical to pip and uv's --no-build-isolation
flag.If you use pipx, such as in GitHub Actions, the following command will download and run build in one step:
$ pipx run build
If you want to use uv to speed up the virtual environment creation, you can use
--installer=uv
. You can get a Python wheel for uv
with the [uv]
extra.
Combining both suggestions yields the following:
$ pipx run build[uv] --installer=uv
If you are using cibuildwheel, build is integrated and can be use with either (in your pyproject.toml
):
[tool.cibuildwheel]
build-frontend = "build"
or
[tool.cibuildwheel]
build-frontend = "build[uv]"
(Be sure to pre-install uv before running cibuildwheel for this one!)
On conda-forge, this package is called python-build.
Everyone interacting in the build's codebase, issue trackers, chat rooms, and mailing lists is expected to follow the PSF Code of Conduct.
FAQs
A simple, correct Python build frontend
We found that build demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 4 open source maintainers collaborating on the project.
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