WASM Emscripten 3.x fails with: Cannot find module 'ws' #146325
Description
First failing build: https://buildbot.python.org/#/builders/1810/builds/2097
0:06:44 load avg: 0.10 [255/501] test_import
0:06:46 load avg: 0.10 [255/501] test_import passed
0:06:46 load avg: 0.10 [256/501] test_importlib
node:internal/modules/cjs/loader:1456
const err = new Error(message);
^
Error: Cannot find module 'ws'
Require stack:
- /home/emscripten/buildarea/3.x.rkm-emscripten.emscripten/build/cross-build/wasm32-emscripten/build/python/python.mjs
at Module._resolveFilename (node:internal/modules/cjs/loader:1456:15)
at defaultResolveImpl (node:internal/modules/cjs/loader:1066:19)
at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1071:22)
at Module._load (node:internal/modules/cjs/loader:1242:25)
at wrapModuleLoad (node:internal/modules/cjs/loader:255:19)
at Module.require (node:internal/modules/cjs/loader:1556:12)
at require (node:internal/modules/helpers:152:16)
at Object.listen (file:///home/emscripten/buildarea/3.x.rkm-emscripten.emscripten/build/cross-build/wasm32-emscripten/build/python/python.mjs:1:99158)
at ___syscall_listen (file:///home/emscripten/buildarea/3.x.rkm-emscripten.emscripten/build/cross-build/wasm32-emscripten/build/python/python.mjs:1:116282)
at wasm://wasm/02b65c12:wasm-function[16939]:0x730c5a {
code: 'MODULE_NOT_FOUND',
requireStack: [
'/home/emscripten/buildarea/3.x.rkm-emscripten.emscripten/build/cross-build/wasm32-emscripten/build/python/python.mjs'
]
}
Node.js v24.14.0
program finished with exit code 1
cc @hoodmane