Unable to have logs written to log file

Created by: aaronperrin

Problem statement

I'm trying to enable debug logging so that I can debug an issue I'm having. However, although the log file is created, it's empty.

Steps to reproduce

1. In sverchok preferences
2. Enable Debug mode
3. Enable Log to file
4. Do something (like cause an input error).
5. Check that log file exists at path specified and that it contains logs.

Expected result

I expected to see a log file that contained debug log messages. The log file was created, but it was empty.

Actual result

Empty log file.

Sverchok version

The version from github master from October 26.