lavovalampa / pyft4222 Goto Github PK

If you have an app with pyft4222 as a dependency and distribute it using PyInstaller, the necessary DLL files are not included.

One way to fix this is to include the binaries manually. Run this to check the extra arguments to use:

import os
import site
from pathlib import Path

# Find site-packages (where the lib is installed)
sitepackages = Path(site.getsitepackages()[-1]).resolve()
# Relative location on the lib
bin_ft4222 = Path('pyft4222', 'wrapper', 'dll')
# Show the arguments
print('--add-binary', f'{sitepackages / bin_ft4222}{os.pathsep}{bin_ft4222}')

I can confirm this works on Windows too.

Note this includes all the binaries on all the OS/architecture combination. Including only the necessary binaries is left as an exercise to the reader, since it's only about 1MB for everything I did not bother.

It should be possible to define a PyInstaller hook so that it automatically can include the binaries without manual intervention.

See PyInstaller documentation:

https://pyinstaller.org/en/stable/hooks.html#providing-pyinstaller-hooks-with-your-package

There is an issue loading libft4222.dll: I get an error unable to load shared library!
I am using windows 11.
Tried updating lib-ft4222.dll manually by downloading latest dll from ftdi page. It seems that there were some changes since the latest update in changelog was in march 2024.

I could try updating the.dll myself (and create a PR to this repo), but I am afraid it would break anything.

How this issue could be resolved?