How to have file name and line number in GAE Python logging.info logs?

Question

In the logs, the timestamp is available but the "source file name" and "line number" are not logged with every log message.

How to log file name and line number in GAE Python logging.info (or logging.warn or logging.error and others) ?

By "source file name", I mean the Python code file (*.py) which generated the log.

Answer 1

In your main.py add:

formatter = logging.Formatter('%(levelname)-8s %(asctime)s %(filename)s:%(lineno)s] %(message)s')

logging.getLogger().handlers[0].setFormatter(formatter)