wiwichips / pythonmonkey-emscripten-example

Executing C libraries from Python using WASM and Emscripten

PythonMonkey Emscripten Example

This example will demonstrate using Emscripten to compile a C library to webassembly and loading it from Python using PytyhonMonkey.

PythonMonkey is a Python library for executing JavaScript and WebAssembly from Python. Check it out on GitHub: https://github.com/Distributive-Network/PythonMonkey

In this example the following C code will be executed from Python:

#include <emscripten.h>

EMSCRIPTEN_KEEPALIVE
int add(int a, int b) {
	return a + b;
}

print(my_c_lib.add(1,2)) # this outputs 3

Installation

Install Emscripten https://emscripten.org/docs/getting_started/downloads.html

Install Python with a minimum version of 3.8.

Install PythonMonkey using pip: $ pip install pythonmonkey

Build and Run

Compile the code using emcc $ emcc adder.c -s WASM=1 -s SIDE_MODULE=1 -o adder.wasm

Run the python program:

$ python3 main.py