How do I deploy a Python PyQt5 Application to an embedded Linux?

Question

I've written a Python3 application which uses PyQt5 for the GUI, it runs fine on every desktop system. Now I would like to run this on an embedded linux (specifically: Yocto BSP) which is delivered by the hardware manufacturer. Since there's no PyQt5 but a qt5 and python3 package running on the BSP, I would like to (somehow) make a standalone executable of the application. Plus I'm not experienced with writing bitbake recipes and creating a custom BSP and have not found any existing PyQt5 recipes.

What I've tried so far (and did not succeed):

• Make a standalone executable with nuitka, cx-freeze, pyinstaller (compiled on a similiar arm platform)
• Use pyqtdeploy to convert python into c++ source code, then compile it by using the supplied build-environment. I did a static compile of the pyqt5 and sip packages and everything compiles just fine, but make reports undefined references (linker errors) which I cannot resolve (as I'm not very familiar with c++).

Now what's the best approach to let a python/pyqt5 application run on an embedded linux system with very limited packages?

Answer 1

The meta-qt5 layer provides a recipe for python-pyqt5.

Answer 2

First you should get the meta of qt5: https://github.com/meta-qt5/meta-qt5 Then modify the local.con and you-image.bb to make the qt5 can be compiled into the image.