* Pull Sentinel out of LoggingContext
... and drop a few unnecessary references to it
* Factor out LoggingContext.current_context
move `current_context` and `set_context` out to top-level functions.
Mostly this means that I can more easily trace what's actually referring to
LoggingContext, but I think it's generally neater.
* move copy-to-parent into `stop`
this really just makes `start` and `stop` more symetric. It also means that it
behaves correctly if you manually `set_log_context` rather than using the
context manager.
* Replace `LoggingContext.alive` with `finished`
Turn `alive` into `finished` and make it a bit better defined.
This is a mixed commit that fixes various small issues
* print parentheses
* 01 is invalid syntax (it was octal in py2)
* [x for i in 1, 2] is invalid syntax
* six moves
Signed-off-by: Adrian Tschira <nota@notafile.com>
