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Setuptools rust extension plugin

Project description

Setuptools helpers for rust Python extensions implemented with PyO3 python binding.

Compile and distribute Python extensions written in rust as easily as if they were written in C.


from setuptools import setup
from setuptools_rust import Binding, RustExtension

                                     'Cargo.toml', binding=Binding.PyO3)],
      # rust extensions are not zip safe, just like C-extensions.

You can use same commands as for c-extensions. For example:

>>> python ./ develop
running develop
running egg_info
writing hello-rust.egg-info/PKG-INFO
writing top-level names to hello_rust.egg-info/top_level.txt
writing dependency_links to hello_rust.egg-info/dependency_links.txt
reading manifest file 'hello_rust.egg-info/SOURCES.txt'
writing manifest file 'hello_rust.egg-info/SOURCES.txt'
running build_ext
running build_rust
cargo build --manifest-path extensions/Cargo.toml --features python3
    Finished debug [unoptimized + debuginfo] target(s) in 0.0 secs

Creating /.../lib/python3.6/site-packages/hello_rust.egg-link (link to .)

Installed hello_rust
Processing dependencies for hello_rust==1.0
Finished processing dependencies for hello_rust==1.0

Or you can use commands like bdist_wheel or bdist_egg.

You can build manylinux1 binary wheels using Docker:

docker run --rm -v `pwd`:/io /io/ example can be found here:


You can define rust extension with RustExtension class:

RustExtension(name, path, args=None, features=None, rust_version=None, quiet=False, debug=False)

The class for creating rust extensions.

param str name:

the full name of the extension, including any packages – ie. not a filename or pathname, but Python dotted name. It is possible to specify multiple binaries, if extension uses Binsing.Exec binding mode. In that case first argument has to be dictionary. Keys of the dictionary corresponds to compiled rust binaries and values are full name of the executable inside python package.

param str path:

path to the Cargo.toml manifest file

param [str] args:

a list of extra argumenents to be passed to cargo.

param [str] features:

a list of features to also build

param str rust_version:

sematic version of rust compiler version – for example >1.14,<1.16, default is None

param bool quiet:

Does not echo cargo’s output. default is False

param bool debug:

Controls whether –debug or –release is passed to cargo. If set to None then build type is auto-detect. Inplace build is debug build otherwise release. Default: None

param int binding:

Controls which python binding is in use. Binding.PyO3 uses PyO3 Binding.RustCPython uses rust-cpython Binding.NoBinding uses no binding. Binding.Exec build executable.

param int strip:

Strip symbols from final file. Does nothing for debug build. Strip.No - do not strip symbols (default) Strip.Debug - strip debug symbols Strip.All - strip all symbols

param bool script:

Generate console script for executable if Binding.Exec is used.

param bool native:

Build extension or executable with “-C target-cpu=native”

param bool optional:

if it is true, a build failure in the extension will not abort the build process, but instead simply not install the failing extension.


  • build - Standard build command builds all rust extensions.

  • build_rust - Command builds all rust extensions.

  • clean - Standard clean command executes cargo clean for all rust extensions.

  • check - Standard check command executes cargo check for all rust extensions.


0.8.2 (2017-09-08)

  • Fix script generation for bdist_wheel

0.8.1 (2017-09-08)

  • Added native parameter

  • Fix script generation for executables

0.8.0 (2017-09-05)

  • Support multiple rust binaries #24

0.7.2 (2017-09-01)

  • Generate console-script for Binding.Exec #22

  • Do not run cargo check for sdist command #18

  • Remove extra python3 file extension for executables.

0.7.1 (2017-08-18)

  • Allow to strip symbols from executable or dynamic library.

  • Use PyO3 0.2 for example.

0.7.0 (2017-08-11)

  • Allow to build executable and pack with python package.

  • Use PyO3 0.1 for example.

0.6.4 (2017-07-31)

  • check command respects optional option

  • Don’t fail when Rust isn’t installed while all extensions are optional

0.6.3 (2017-07-31)

  • Fix pypi source distribution

0.6.2 (2017-07-31)

  • Add optional option to RustExtension #16

0.6.1 (2017-06-30)

  • Support CARGO_TARGET_DIR variable #14

0.6.0 (2017-06-20)

0.5.1 (2017-05-03)

  • Added support for “cargo test”

  • Fixed unbound method type error #4

0.5.0 (2017-03-26)

  • Added support for “cargo check”

0.4.2 (2017-03-15)

  • Added “–qbuild” option for “build_rust” command. Set “quiet” mode for all extensions.

  • Added “–debug” and “–release” options for “build_rust” command.

0.4.1 (2017-03-10)

  • Fixed cargo manifest absolute path detection

0.4 (2017-03-10)

  • Fixed bdist_egg and bdist_wheel support

  • setuptool’s clean command cleans rust project as well

  • Use absolute path to cargo manifest

  • Enable debug builds for inplace builds, otherwise build release

  • Simplify monkey patches

0.3.1 (2017-03-09)

  • Fix compatibility with some old versions of setuptools

0.3 (2017-03-09)

  • Fixed OSX extension compilation

  • Use distutils exceptions for errors

  • Add rust version check for extension

  • Cleanup example project

0.2 (2017-03-08)

  • Fix bdist_egg and bdist_wheel commands

0.1 (2017-03-08)

  • Initial release

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