[PyQt] PyQt5 and temporary python interpreter in a C++ program

[Pierre Barbier de Reuille]

Hi,

I have a C++ application that can be scripted with Python. As the scripting
is very localized in time, I had originally chosen to initialize the
interpreter before each script, and finalize it after each script.

This worked very well until I tried to use PyQt5 in my scripts! If I do
that, it works the first time, but on the next initialization, all the
modules are close to empty. In particular, they don't have any classes!

As a temporary solution, I initialize the interpreter once at the start of
my application, and re-use it over and over. But this is not ideal! In
particular, that would allow for resources leaks, which I would like to
avoid. Is this a known issue with PyQt? Is there something I can do to make
this work?

Thanks,

Pierre
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