I want to call some rust code from python on a linux machine. Specifically, I want to be able to run python3 -c 'import magic; print(magic.do_add(3, 4))' and have it give me the sum of these numbers. Here, do_add should be a rust function that adds two integers. Please give me a complete set of instructions for how to make this run, so that when I run this code as-is it will work.
I want to call some rust code from python on a linux machine. Specifically, I want to be able to run python3 -c 'import magic; print(magic.do_add(3, 4))' and have it give me the sum of these numbers. Here, do_add should be a rust function that adds two integers. Please give me a complete set of instructions for how to make this run, so that when I run this code as-is it will work.
Below are step‐by‐step instructions to create a Python extension module in Rust that exposes a function do_add(a, b) which adds two integers. We’ll use the PyO3 library along with maturin (a tool for building and publishing Rust-based Python packages). These instructions assume you have Rust (cargo) and Python 3 installed on your Linux machine. ───────────────────────────── 1. Install maturin ───────────────────────────── Maturin makes it easy to build a Python extension written in Rust. Install it with pip (or via cargo, if you prefer): • Using pip (in a Python virtual environment or system-wide): $ pip install maturin • Alternatively, you can install it with cargo: $ cargo install maturin ───────────────────────────── 2. Create a New Rust Library Project ───────────────────────────── Create a new Rust library project called “magic”: $ cargo new --lib magic Change directory into the new project: $ cd magic ───────────────────────────── 3. Configure Cargo.toml ───────────────────────────── Open the Cargo.toml file and do two things: a. Under [lib], set the crate type to cdylib so that it can be compiled as a dynamic library: [lib] name = "magic" crate-type = ["cdylib"] b. Under [dependencies] add PyO3 with the extension-module feature: [dependencies] pyo3 = { version = "0.18", features = ["extension-module"] } Your Cargo.toml should look similar to this: -------------------------------------------------- [package] name = "magic" version = "0.1.0" edition = "2021" [lib] name = "magic" crate-type = ["cdylib"] [dependencies] pyo3 = { version = "0.18", features = ["extension-module"] } -------------------------------------------------- ───────────────────────────── 4. Write Your Rust Code ───────────────────────────── Replace the contents of src/lib.rs with the following code: -------------------------------------------------- use pyo3::prelude::*; // The #[pymodule] attribute tells PyO3 to create a Python module named "magic" #[pymodule] fn magic(py: Python, m: &PyModule) -> PyResult<()> { // Register the function do_add with the module. m.add_function(wrap_pyfunction!(do_add, m)?)?; Ok(()) } // The #[pyfunction] attribute exposes the function to Python. #[pyfunction] fn do_add(a: i64, b: i64) -> PyResult<i64> { Ok(a + b) } -------------------------------------------------- This code tells PyO3 to generate a Python module called magic that includes the function do_add. ───────────────────────────── 5. Build and Install the Python Module ───────────────────────────── Using maturin in “development” mode, build and install the module into your current Python environment. From the project’s root directory (where Cargo.toml is located), run: $ maturin develop --release This command builds your Rust code as a Python extension module and installs it so that you can import it in Python. ───────────────────────────── 6. Test the Module ───────────────────────────── Now you can test it by running: $ python3 -c 'import magic; print(magic.do_add(3, 4))' You should see: 7 ───────────────────────────── Troubleshooting Tips ───────────────────────────── • Make sure you have the Python development headers installed. On Debian/Ubuntu you can run: $ sudo apt-get install python3-dev • If you are using a virtual environment, ensure that maturin installs the module into that environment. That’s all! You now have a working Python module backed by Rust code.
Now please conver this answer into a JSON array that packages it all up so I don't need to think and can just copy files to specific locations and then run things. Format your answer {"path/to/file": "contents of rust file", "path/to/python_file": "contents of any necessary python file that exposes do_add", "build.sh": "contents of a bash file to build the project", ... # any other files necessary } The only thing I will do is put files in the right place and run `bash build.sh`. Do not give any explanation of the code. ONLY ANSWER WITH A SINGLE JSON OBJECT. Your answer should start
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1 2 3 4 5 6 | { "Cargo.toml": "[package]\nname = \"magic\"\nversion = \"0.1.0\"\nedition = \"2021\"\n\n[lib]\nname = \"magic\"\ncrate-type = [\"cdylib\"]\n\n[dependencies]\npyo3 = { version = \"0.18\", features = [\"extension-module\"] }", "src/lib.rs": "use pyo3::prelude::*;\n\n#[pymodule]\nfn magic(_py: Python, m: &PyModule) -> PyResult<()> {\n m.add_function(wrap_pyfunction!(do_add, m)?)?;\n Ok(())\n}\n\n#[pyfunction]\nfn do_add(a: i64, b: i64) -> PyResult<i64> {\n Ok(a + b)\n}\n", "build.sh": "#!/bin/bash\nset -e\n\n# Install maturin using pip if not already installed\npython3 -m pip install --upgrade maturin\n\n# Build and install the Python module in the current Python environment\nmaturin develop --release\n", "README.md": "# Magic Python Module (Rust backed)\n\nTo build and test the module:\n\n1. Ensure you have Python 3, Rust, and the Python development headers installed.\n For Debian/Ubuntu users:\n sudo apt-get install python3-dev\n\n2. Run:\n bash build.sh\n\n3. Test the module with:\n python3 -c 'import magic; print(magic.do_add(3, 4))'\n" } |
I extracted the following JSON from that output:
1 2 3 4 5 6 | { "Cargo.toml": "[package]\nname = \"magic\"\nversion = \"0.1.0\"\nedition = \"2021\"\n\n[lib]\nname = \"magic\"\ncrate-type = [\"cdylib\"]\n\n[dependencies]\npyo3 = { version = \"0.18\", features = [\"extension-module\"] }", "src/lib.rs": "use pyo3::prelude::*;\n\n#[pymodule]\nfn magic(_py: Python, m: &PyModule) -> PyResult<()> {\n m.add_function(wrap_pyfunction!(do_add, m)?)?;\n Ok(())\n}\n\n#[pyfunction]\nfn do_add(a: i64, b: i64) -> PyResult<i64> {\n Ok(a + b)\n}\n", "build.sh": "#!/bin/bash\nset -e\n\n# Install maturin using pip if not already installed\npython3 -m pip install --upgrade maturin\n\n# Build and install the Python module in the current Python environment\nmaturin develop --release\n", "README.md": "# Magic Python Module (Rust backed)\n\nTo build and test the module:\n\n1. Ensure you have Python 3, Rust, and the Python development headers installed.\n For Debian/Ubuntu users:\n sudo apt-get install python3-dev\n\n2. Run:\n bash build.sh\n\n3. Test the module with:\n python3 -c 'import magic; print(magic.do_add(3, 4))'\n" } |
final: False WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable.It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning. [notice] A new release of pip is available: 24.2 -> 25.0 [notice] To update, run: python3 -m pip install --upgrade pip 💥 maturin failed Caused by: Couldn't find a virtualenv or conda environment, but you need one to use this command. For maturin to find your virtualenv you need to either set VIRTUAL_ENV (through activate), set CONDA_PREFIX (through conda activate) or have a virtualenv called .venv in the current or any parent folder. See https://virtualenv.pypa.io/en/latest/index.html on how to use virtualenv or use `maturin build` and `pip install <path/to/wheel>` instead. Traceback (most recent call last): File "<string>", line 1, in <module> ModuleNotFoundError: No module named 'magic' Resulting in output: False
I want to call some rust code from python on a linux machine. Specifically, I want to be able to run python3 -c 'import magic; print(magic.do_add(3, 4))' and have it give me the sum of these numbers. Here, do_add should be a rust function that adds two integers. Please give me a complete set of instructions for how to make this run, so that when I run this code as-is it will work.
I want to call some rust code from python on a linux machine. Specifically, I want to be able to run python3 -c 'import magic; print(magic.do_add(3, 4))' and have it give me the sum of these numbers. Here, do_add should be a rust function that adds two integers. Please give me a complete set of instructions for how to make this run, so that when I run this code as-is it will work.
Below is a step‐by‐step guide to create a Python extension module written in Rust that exports a function do_add(a, b). We’ll use the PyO3 framework and maturin as the build tool. At the end you’ll be able to run: python3 -c 'import magic; print(magic.do_add(3, 4))' and see the output 7. ────────────────────────────── Step 1. Install Prerequisites • Make sure you have Rust installed. If not, install it via rustup: curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh • Install maturin—a tool to build and publish Rust-based Python packages: pip install maturin • (Optional) Ensure you have Python 3 installed on your Linux machine. ────────────────────────────── Step 2. Create a New Rust Library Project Open a terminal and create a new directory for your project. For example: mkdir magic cd magic Now initialize a new Cargo library: cargo init --lib This creates a project with a Cargo.toml file and a src directory containing lib.rs. ────────────────────────────── Step 3. Update Cargo.toml Open Cargo.toml in your favorite editor and add pyo3 as a dependency with the “extension-module” feature. Also, specify that the crate type is a cdylib. Your Cargo.toml should look something like this: ----------------------------------------------------------- [package] name = "magic" version = "0.1.0" edition = "2021" [dependencies] pyo3 = { version = "0.18", features = ["extension-module"] } [lib] crate-type = ["cdylib"] ----------------------------------------------------------- ────────────────────────────── Step 4. Write the Rust Code Edit src/lib.rs and replace its contents with the following code: ----------------------------------------------------------- use pyo3::prelude::*; #[pyfunction] fn do_add(a: i32, b: i32) -> i32 { a + b } #[pymodule] fn magic(_py: Python, m: &PyModule) -> PyResult<()> { m.add_function(wrap_pyfunction!(do_add, m)?)?; Ok(()) } ----------------------------------------------------------- Explanation: • #[pyfunction] marks do_add to be exposed to Python. • #[pymodule] sets up the magic module. Its name (“magic”) must match the name you want to import in Python. • wrap_pyfunction! connects the Rust function to the Python module. ────────────────────────────── Step 5. Build and Install the Python Package Using maturin, build the extension module and install it into your current Python environment. In your project folder (the one containing Cargo.toml), run: maturin develop This compiles your Rust code into a shared library (.so file on Linux) and installs it as a Python package named magic. (If you run into any environment issues, make sure your PATH and Python environments are configured appropriately.) ────────────────────────────── Step 6. Run Your Python Test Now that the package is installed, you can test it. Run the following command in your terminal: python3 -c 'import magic; print(magic.do_add(3, 4))' You should see: 7 ────────────────────────────── Tips and Troubleshooting • If you update the code, re-run maturin develop to rebuild and reinstall the module. • Make sure that your Python environment (e.g., virtualenv) is activated when running maturin. • If you ever want to build a release version of your module, you can use maturin build. ────────────────────────────── Wrap-Up By following these steps, you’ve created a Python extension module in Rust that exposes a function do_add. Now you can call this from Python as described. Enjoy your new Rust-powered Python module!
Now please conver this answer into a JSON array that packages it all up so I don't need to think and can just copy files to specific locations and then run things. Format your answer {"path/to/file": "contents of rust file", "path/to/python_file": "contents of any necessary python file that exposes do_add", "build.sh": "contents of a bash file to build the project", ... # any other files necessary } The only thing I will do is put files in the right place and run `bash build.sh`. Do not give any explanation of the code. ONLY ANSWER WITH A SINGLE JSON OBJECT. Your answer should start
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1 2 3 4 5 | { "Cargo.toml": "[package]\nname = \"magic\"\nversion = \"0.1.0\"\nedition = \"2021\"\n\n[dependencies]\npyo3 = { version = \"0.18\", features = [\"extension-module\"] }\n\n[lib]\ncrate-type = [\"cdylib\"]\n", "src/lib.rs": "use pyo3::prelude::*;\n\n#[pyfunction]\nfn do_add(a: i32, b: i32) -> i32 {\n a + b\n}\n\n#[pymodule]\nfn magic(_py: Python, m: &PyModule) -> PyResult<()> {\n m.add_function(wrap_pyfunction!(do_add, m)?)?;\n Ok(())\n}\n", "build.sh": "#!/bin/bash\nset -e\npip install maturin --upgrade\nmaturin develop\n" } |
I extracted the following JSON from that output:
1 2 3 4 5 | { "Cargo.toml": "[package]\nname = \"magic\"\nversion = \"0.1.0\"\nedition = \"2021\"\n\n[dependencies]\npyo3 = { version = \"0.18\", features = [\"extension-module\"] }\n\n[lib]\ncrate-type = [\"cdylib\"]\n", "src/lib.rs": "use pyo3::prelude::*;\n\n#[pyfunction]\nfn do_add(a: i32, b: i32) -> i32 {\n a + b\n}\n\n#[pymodule]\nfn magic(_py: Python, m: &PyModule) -> PyResult<()> {\n m.add_function(wrap_pyfunction!(do_add, m)?)?;\n Ok(())\n}\n", "build.sh": "#!/bin/bash\nset -e\npip install maturin --upgrade\nmaturin develop\n" } |
final: False WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable.It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning. [notice] A new release of pip is available: 24.2 -> 25.0 [notice] To update, run: python3.12 -m pip install --upgrade pip 💥 maturin failed Caused by: Couldn't find a virtualenv or conda environment, but you need one to use this command. For maturin to find your virtualenv you need to either set VIRTUAL_ENV (through activate), set CONDA_PREFIX (through conda activate) or have a virtualenv called .venv in the current or any parent folder. See https://virtualenv.pypa.io/en/latest/index.html on how to use virtualenv or use `maturin build` and `pip install <path/to/wheel>` instead. Traceback (most recent call last): File "<string>", line 1, in <module> ModuleNotFoundError: No module named 'magic' Resulting in output: False