RotatingFileHandler

class (source)

RotatingFileHandler(filename, mode='a', maxBytes=0, backupCount=0, encoding=None, delay=False, errors=None)

Handler for logging to a set of files, which switches from one file
to the next when the current file reaches a certain size.

Changed in 3.6, 3.9

3.6: As well as string values, Path objects are also accepted for the filename argument.
3.9: The errors parameter was added.