This repo will be archived on December 1st 2021. While still readable it will no longer be maintained. There's a community maintained successor of this project at https://github.com/go-python/cpy3 .

go-python3

Currently supports python-3.7 only.

Golang bindings for the C-API of CPython-3.

This package provides a go package named "python" under which most of the PyXYZ functions and macros of the public C-API of CPython have been exposed. Theoretically, you should be able use https://docs.python.org/3/c-api and know what to type in your go program.

This project was inspired by https://github.com/sbinet/go-python. Go and take a look if we need something for python-2.7!

Install

Deps

We will need pkg-config and a working python3.7 environment to build these bindings. Make sure you have Python libraries and header files installed as well (python3.7-dev on Debian or python3-devel on Centos for example)..

By default pkg-config will look at the python3 library so if you want to choose a specific version just symlink python-X.Y.pc to python3.pc or use the PKG_CONFIG_PATH environment variable.

Go get

Then simply go get github.com/DataDog/go-python3

API

Some functions mix go code and call to Python function. Those functions will return and int and error type. The int represent the Python result code and the error represent any issue from the Go layer.

Example:

func PyRun_AnyFile(filename string) open filename and then call CPython API function int PyRun_AnyFile(FILE *fp, const char *filename).

Therefore its signature is func PyRun_AnyFile(filename string) (int, error), the int represent the error code from the CPython PyRun_AnyFile function and error will be set if we failed to open filename.

If an error is raise before calling th CPython function int default to -1.

Take a look at some examples

License

DataDog/go-python3

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