[PyQt] Where does pyqt5qmlplugin.dll get the python executable path?

[Phil Thompson]

On 8 Jan 2019, at 9:38 pm, Russell Warren <russ at perspexis.com> wrote:
> 
> I've been able to get qmlscene plugins working on Linux, but am now trying to get them working on Windows and am having trouble, particularly when in a virtualenv,
> 
> I'm running qmlscene.exe within a virtualenv where my PATH clearly references the python I want to use (with related site-packages)... yet pyqt5qmlplugin.dll is somehow finding and launching my <foo>plugin.py file with a completely different python path. This is apparent not just from it not working, but from sneaking a peak at the site-packages dir used by the plugin;py file in sys.path.
> 
> Where/how does pyqt5qmlplugin.dll get the path to the python executable to run the requisite `<foo>plugin.py` file?

It doesn't. It dynamically loads the shared library the path of which is determined by configure.py.

Phil