Use python logging instead of env variable

[dekekincaid]

I was curious if you guys thought of just using proper python logging instead of the QT_VERBOSE environment variable? Then it is a bit easier to control things like this at a global level. Especially for things like on renderfarms, etc.. where you can just switch logging to different levels for all software rather then needing per tool env variables to turn on/off logging.

[mottosso]

Good idea.

My preference would be having QT_VERBOSE be the default level for the logger, and any logging messages using that logger. That way, you can still configure it at the process-level, and also during run-time.

E.g.

import logging

log = logging.getLogger(__name__)
log.setLevel(logging.DEBUG if QT_VERBOSE else logging.INFO)
...