I don't know the full history of _debug but there is a comment in ipsilon/util/log.py:
# for compatibility with existing code
It should be fairly straightforward to replace and drop _debug.
This issue ticket was originally removed from the tracker as it clashed with the pull request. See upstream ticket for migration details.
Metadata Update from @t0xic0der: - Issue close_status updated to: Fixed - Issue status updated to: Closed (was: Open)