Skip to main content

WebAssembly Interpreter by pure Python

Project description

pywasm: A WebAssembly interpreter written in pure Python.

Build Status

A WebAssembly interpreter written in pure Python.

The wasm version currently in use is: WebAssembly Core Specification, W3C Recommendation, 5 December 2019. Just like Firefox or Chrome does.

Installation

$ pip3 install pywasm

Some simple examples

  1. First we need a wasm module! Grab our ./examples/fib.wasm file and save a copy in a new directory on your local machine. Note: fib.wasm was compiled from ./examples/fib.c by WasmFiddle.

  2. Now, compile and instantiate WebAssembly modules directly from underlying sources. This is achieved using the pywasm.load method.

import pywasm
# pywasm.on_debug()

runtime = pywasm.load('./examples/fib.wasm')
r = runtime.exec('fib', [10])
print(r) # 55

A brief description for ./examples

File Description
./examples/add.wasm Export i32.add function
./examples/env.wasm Call python/native function in wasm
./examples/fib.wasm Fibonacci, which contains loop and recursion
./examples/str.wasm Export a function which returns string
./examples/sum.wasm Equal difference series summation

Of course there are some more complicated examples!

Test

$ python3 ./test/test_spec.py

Tested in the following environments:

  • Python >= 3.6

Thanks

License

MIT

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

pywasm-1.0.1.tar.gz (28.4 kB view hashes)

Uploaded source

Built Distribution

pywasm-1.0.1-py3-none-any.whl (28.1 kB view hashes)

Uploaded py3

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page