Failed to execute script 'pyi_rth_multiprocessing' on mac

[hahazexia]

i have this repository https://github.com/hahazexia/img2pdfpy

and i build it to one file with pyinstaller

poetry run pyinstaller --onefile ./img2pdfpy/cli.py

then there is a cli file in dist folder.

when i use cli exec file with

./cli -i "/Users/hahazexiahahazexia/Downloads/comic/政治最前线_单行本"

the tool works fine, the final pdf file is correct, but there is waning in terminal:

multiprocessing/resource_tracker.py:136: UserWarning: resource_tracker: process died unexpectedly, relaunching.  Some resources might leak.
Traceback (most recent call last):
  File "PyInstaller/hooks/rthooks/pyi_rth_multiprocessing.py", line 54, in <module>
  File "PyInstaller/hooks/rthooks/pyi_rth_multiprocessing.py", line 16, in _pyi_rthook
  File "PyInstaller/loader/pyimod02_importers.py", line 384, in exec_module
  File "multiprocessing/__init__.py", line 16, in <module>
  File "PyInstaller/loader/pyimod02_importers.py", line 384, in exec_module
  File "multiprocessing/context.py", line 6, in <module>
  File "PyInstaller/loader/pyimod02_importers.py", line 384, in exec_module
  File "multiprocessing/reduction.py", line 16, in <module>
  File "PyInstaller/loader/pyimod02_importers.py", line 384, in exec_module
  File "socket.py", line 55, in <module>
  File "PyInstaller/loader/pyimod02_importers.py", line 384, in exec_module
  File "selectors.py", line 12, in <module>
ModuleNotFoundError: No module named 'select'
[PYI-77233:ERROR] Failed to execute script 'pyi_rth_multiprocessing' due to unhandled exception!

my device is Mac Apple M3 Pro 14.4.1

python -c "from _socket import file; print(file)"

/Users/hahazexiahahazexia/.pyenv/versions/3.13.0/lib/python3.13/lib-dynload/_socket.cpython-313-darwin.so

i have already search the issue, find some same issue, but the solution not working for me, the warning still show

[rokm]

What about python -c "from select import __file__; print(__file__)"?

If you open build/<name>/Analysis-00.toc, do you see any entry for select? Do you see other entries collected from /Users/hahazexiahahazexia/.pyenv/versions/3.13.0/lib/python3.13/lib-dynload?

[hahazexia]

python -c "from select import __file__; print(__file__)"

/Users/hahazexiahahazexia/.pyenv/versions/3.13.0/lib/python3.13/lib-dynload/select.cpython-313-darwin.so

In Analysis-00.toc i see this:

('lib-dynload/select.cpython-313-darwin.so', '/Users/hahazexiahahazexia/.pyenv/versions/3.13.0/lib/python3.13/lib-dynload/select.cpython-313-darwin.so', 'EXTENSION'),

[rokm]

So the extension is collected. And since you're using onefile mode, the error is probably not raised by the main application process, but by a multiprocessing sub-process (which is substantiated by the resource_tracker warning at the top of your backtrace).

Try changing

if __name__ == '__main__':
    main()

into

if __name__ == '__main__':
    import multiprocessing
    multiprocessing.freeze_support()
    main()

as per https://pyinstaller.org/en/stable/common-issues-and-pitfalls.html#multi-processing

[hahazexia]

yeah, i try what u suggest, it's ok now. Thanks!