Python logging how do i it create empty log file?

Question

How do I stop logging to create a log file when there is no log message? Currently, the logger has created an empty log when even no logging message to it. Use case is I created a FileHandler that only log error (by logger.error("I am error!")), but I don't want it to create a file when there is no error.

Answer 1

The documentation says to pass delay=True to create the file on the first emit call.