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os.path.exists crashes pyodide when using PROXYFS
See original GitHub issue🐛 Bug
When file_path is in a directory that uses PROXYFS, running os.path.exists(file_path) returns True when the file exists but crashes pyodide when it does not.
To Reproduce
index.html:
<!DOCTYPE html>
<html>
<body>
<script> new Worker('webworker.js'); </script>
</body>
</html>
webworker.js:
importScripts("https://cdn.jsdelivr.net/pyodide/v0.21.3/full/pyodide.js");
async function loadPyodideAndPackages() {
self.pyodide1 = await loadPyodide();
self.pyodide2 = await loadPyodide();
await self.pyodide1.FS.mkdir("/dir1");
await self.pyodide2.FS.mkdir("/dir2");
await self.pyodide2.FS.mount(self.pyodide2.FS.filesystems.PROXYFS, {
root: "/dir1",
fs: self.pyodide1.FS
}, "/dir2");
// this code generates the expected output True False
await self.pyodide1.runPython(`
import os
with open('/dir1/foo.txt', 'w') as f:
f.write('hello')
print(os.path.exists('/dir1/foo.txt'));
print(os.path.exists('/dir1/bar.txt'));
`);
// this code outputs True but then crashes on the last line
await self.pyodide2.runPython(`
import os
print(os.path.exists('/dir2/foo.txt'));
print(os.path.exists('/dir2/bar.txt'));
`);
}
let pyodideReadyPromise = loadPyodideAndPackages();
The error message in the console is the following:
Expected behavior
The code above should have produced the output
True
False
True
False
instead of crashing.
Environment
- Pyodide Version: v0.21.3
- Browser version: Chrome 105.0.5195.125, Firefox 105.0
Issue Analytics
- State:
- Created a year ago
- Comments:5 (3 by maintainers)
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Thanks for the report @omert. I believe that this is an upstream bug in Emscripten @scb100.
I think you mentioned the wrong person?