Thanks to all that participated, the cpython ticket python/cpython#84461 is being solved
Here's a glimpse of the future : A sandbox for making cpython app on webassembly with integrated pygame built with emscripten portable sdk.
How does it work ?
See the excellent slides of Christian Heimes at PyCon DE
https://www.youtube.com/watch?v=oa2LllRZUlU
https://speakerdeck.com/tiran/python-3-dot-11-in-the-web-browser-a-journey-pycon-de-2022-keynote
or notes of PyCon US 2022 https://speakerdeck.com/tiran/language-summit-2022-webassembly-python-in-the-browser-and-beyond
if you don't need pygame linked to cpython then prefer for final size reasons :
just cpython on wasm see python-wasm https://github.com/ethanhs/python-wasm/
or the classics :
for scientific python see pyodide https://pyodide.org
for cpython+panda3d see https://rdb.name/panda3d-webgl.md.html or/and PyDK
Discussions very welcomed here French/English: https://gitter.im/Wasm-Python/community
English only: WebAssembly/python on https://discord.gg/MCTM4xFDMK
NOTE: as time of cpython pre-3.11a7, released cython does not handle it - only git version - so pygame-wasm is not upstreamed yet
this is only temporary. pygame-wasm has been upstreamed
WIP: https://github.com/pmp-p/pygame-wasm/tree/pygame-wasm-static
ready to use:
https://github.com/pmp-p/pygame-wasm/tree/pygame-wasm-upstream
devlog: pygame/pygame#718
REQUIRED:
1 GNU/Linux system with clang, git, libffi-dev, libssl dev (1.1.1), zlib1g-dev, patch, bash and make
for the simulator add sdl2-dev + sdl_* dev.
everything else will be downloaded.
includes emsdk , cpython , cython, pygame, various imaging lib ...
TESTING:
# need a browser with wasm + WebGL, see https://developer.mozilla.org/en-US/docs/WebAssembly#browser_compatibility
# ( on android kitkat please use Bromite release 81.0.4044.83 or chrome/firefox, the webview will NOT work )
chromium engine based browsers are faster and also impose some limitations so they are the common denominator for Wasm.
most of testing was made on current Brave browser on 64bits GNU/Linux.
# (facultative you can use prebuilt) run :
./python-wasm-plus.sh
# then run :
./buildapp.sh
# navigate to http://localhost:8000 manually or :
xdg-open http://localhost:8000
#type in the terminal followed by enter at the python prompt:
execfile("touchpong.py")
#enjoy a classic
#mouse click first out of terminal, then onto canvas.
# then move up/down with f,v keys.
USING GITHUB ACTIONS TO PUBLISH SOFTWARE:
add support/__EMSCRIPTEN__.yml to your .github/workflows/ folder
create a folder name static at base of your repo
in that folder add static/index.html
containing eg :
<html><a href=python311.html?org.python.myapp>My App</a></html>
and the main.py but as as the fully qualified domain name eg static/org.python.myapp.py
everything in the "static" folder will be accessible as single files for the webserver, everything else will go
inside folder "assets" in the apk zip file named after fqdn eg here org.python.myapp.apk .
After CI completed ( expect a bit more than 30 minutes ) go to https://<yourname>.github.io/<repo>/
use ctrl+shift+i to see the wasm/js console while running your app.
CREDITS:
touchpong.py could be shareware so if you like it, send an expensive thank you
to @blubberquark on Pygame Community discord ;)
emscripten interface use code from Panda3D project written by https://github.com/rdb and regularly modified to accomodate emsdk tip-of-tree.
MORE?:
multithreaded version with online file access and dynamic code is still brewing
feel free to contact me if you have interest in more than single threaded demos.
