what is the best way to overwrite instead of appending the log files? my

logging.yml

looks like this EDIT: just adding

mode: w

did the trick

Someone will reply to you shortly. In the meantime, this might help:

Noted that you may not want to just overwrite in every run, since you want to keep records for more than a single run. What may be better is to keep a rotating log file which will automatically create a new file when it's getting too big. If it's ergonomic for you, you can also have a separate log file that only keep the last run.