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From: Patrick Stinson <patrickkidd@gmail.com>
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Subject: Embedded python 'scripting engine' inside Python app
Date: Sat, 22 Nov 2014 20:48:18 -0900
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Xref: csiph.com comp.lang.python:81346

I am writing a python app (using PyQt, but that=E2=80=99s not important =
here), and want my users to be able to write their own scripts to =
automate the app=E2=80=99s functioning using an engine API hat I expose. =
I have extensive experience doing this in a C++ app with the CPython =
api, but have no idea how to do this outside of calling exec() from with =
in Python :)

Ideally their script would compile when the source changes and retain =
it=E2=80=99s state and respond to callbacks from the api object. It =
appears this won=E2=80=99t work with exec() because the script=E2=80=99s =
definitions and state disappear as soon as the exec() call is complete, =
and the script doesn=E2=80=99t seem to be able to access it=E2=80=99s =
own defined functions and classes.

Thoughts? Fun stuff!

Thanks!=