keller-mark
commented
2 months ago See https://go.dev/blog/wasi - try building with GOOS=wasip1 GOARCH=wasm - use go 1.21 or higher
Update: this works up to the usage of the .so file in the Pyodide python REPL:
Following the steps at https://pyodide.org/en/stable/development/building-and-testing-packages.html#building-and-testing-packages-out-of-tree
pip install pyodide-build
git clone https://github.com/emscripten-core/emsdk.git
cd emsdk
PYODIDE_EMSCRIPTEN_VERSION=$(pyodide config get emscripten_version)
./emsdk install ${PYODIDE_EMSCRIPTEN_VERSION}
./emsdk activate ${PYODIDE_EMSCRIPTEN_VERSION}
source emsdk_env.sh
cd ..
pyodide build
pyodide venv .venv-pyodide
source .venv-pyodide/bin/activate
pip install "./dist/esbuild_py-0.1.5-cp311-cp311-emscripten_3_1_46_wasm32.whl"
python>>> import ctypes
>>> from pathlib import Path
>>> import os
>>> lib_path = Path('build/lib.emscripten_3_1_46_wasm32-cpython-311/_esbuild.cpython-311-wasm32-emscripten.so').absolute()
>>> so = ctypes.CDLL(lib_path)
>>> so.transform
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/lib/python311.zip/ctypes/__init__.py", line 389, in __getattr__
File "/lib/python311.zip/ctypes/__init__.py", line 394, in __getitem__
AttributeError: Tried to lookup unknown symbol "transform" in dynamic lib: /path/to/esbuild-py/build/lib.emscripten_3_1_46_wasm32-cpython-311/_esbuild.cpython-311-wasm32-emscripten.so
>>> so.__dict__
{'_name': PosixPath('/path/to/esbuild-py/build/lib.emscripten_3_1_46_wasm32-cpython-311/_esbuild.cpython-311-wasm32-emscripten.so'), '_FuncPtr': <class 'ctypes.CDLL.__init__.<locals>._FuncPtr'>, '_handle': 23285320}
See