Pyinstaller distributing opencv from Windows 10 to Windows <10, missing ucrt dlls api-ms-win-crt

Question

I have a Python 3.5 64 bit program (required by tensorflow for Windows) that uses OpenCV. I am distributing it with pyinstaller.

I built my program with Windows 10

Answer 1

I've seen PyInstaller and Py2exe fail to pickup dlls countless times. Personally, I wrap my uses of them in batch or bash for a number of reasons to extend what they do. Logically, I see an argument for wrapping them in py scripts themselves...

Anyway, it may be easier to just copy the dependencies into your installation package through a wrapper script rather then fight with this.

Typically, you'll get a dll missing error thrown at you when try to run something it's missing. Add each one manually to the directory, noting what you needed to include yourself. Then script that.