If a file is not built or linked against, a dll in your wheel is essentially a plain data file from Python packaging’s perspective, no different from e.g. a text file. So you’re looking in the wrong direction for solutions.
I believe the issue PyInstaller has with your package is that, since PyInstaller compiles a program into an executable, ctypes.util.find_library() won’t work (since there is no actual dll to find). If you know for sure the dll will be available, you can copy the binary to a temporary location (the “official” way to do this is through importlib.resources.path[1]), and use the path to load the dll directly instead. [1]: https://importlib-resources.readthedocs.io/en/latest/ -- Tzu-ping Chung (@uranusjr) uranu...@gmail.com https://uranusjr.com > On 03/4/2021, at 06:57, Vincent Pelletier <plr.vinc...@gmail.com> wrote: > > Hello, > > I'm the author of python-libusb1, a pure-python ctypes wrapper for > libusb1. > > Until recently, I had been purely relying on OS-linker-provided libusb1 > (distro-installed on GNU/Linux and *BSD, fink/macports/... on OSX, ...). > > Then, I've been requested to bundle the libusb1 dll on windows (x86 and > x86_64 wheels) because otherwise distributions seems exceedingly > painful for applications using my module. With some extra code to > setup.py to fetch, unzip and copy[1] the dlls, plus a now even more > multi-stage distribution process (sdist, both windows wheels, in > addition to the existing sign and twine steps), and it ipso facto works. > > Now, I'm asked to add pyinstaller compatibility, as it on its own > overlooks the dll. Which makes me feel that I am maybe not using the > best possible way to bundle these. > > From my reading of distutils and setuptools, my understanding is that a > package is that non-pure-python packages contain: > - stuff they built themselves (build_ext & friends) > - third-party libraries that the stuff they built themselves is linked > against > Having nothing to build, I cannot seem to reach the library inclusion > step. > > What is the recommended way of bundling a third-party-built > arch-dependent library in an otherwise pure-python package ? > > [1] > https://github.com/vpelletier/python-libusb1/blob/49f7f846bdd3c3d0f2ec3a01c23ed69885cf63a4/setup.py#L48-L58 > > Regards, > -- > Vincent Pelletier > GPG fingerprint 983A E8B7 3B91 1598 7A92 3845 CAC9 3691 4257 B0C1 > -- > Distutils-SIG mailing list -- distutils-sig@python.org > To unsubscribe send an email to distutils-sig-le...@python.org > https://mail.python.org/mailman3/lists/distutils-sig.python.org/ > Message archived at > https://mail.python.org/archives/list/distutils-sig@python.org/message/J6DDMSAC73TVHFMBIEIT6Z6ZB7HGSQGJ/
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