How to parse /var/log/syslog in realtime in python?

Question

linux

It is necessary to process each new line from /var/log/syslog in a loop. How to do it correctly?
One more thing about log rotation is of interest: every day the syslog file is transferred to syslog.1, and new logs are written to a clean syslog. How to make the script "not broken" at this moment

Answer 1

for bash use tail but just add the --follow switch with the name parameter which will bind to the name and not the file descriptor:
tail --follow=name TestFile | обработчик

Answer 2

Is it the file that needs to be parsed? I would consider getting logs via journalctl.