How to set logging level in Flask?

Asked Oct 28 '15 at 16:41

Active Oct 28 '15 at 16:48

Viewed 2,367 times

I've just setup an nginx server with uWSGI to serve my website which I built in Flask. I now want to setup logging, which I've done like this:

logfileHandler = RotatingFileHandler('/var/log/trs/debug.log', maxBytes=100000, backupCount=10)
logfileHandler.setLevel(logging.DEBUG)
app.logger.addHandler(logfileHandler)

And I then log some things using the following:

current_app.logger.debug('DEBUG LOG')
current_app.logger.info('INFO LOG')
current_app.logger.warning('WARNING LOG')
current_app.logger.error('ERROR LOG')
current_app.logger.critical('CRITICAL LOG')

To my surprise however, I only see the last three logs in the debug.log:

WARNING LOG
ERROR LOG
CRITICAL LOG

Any idea why debug and info are not displaying? All tips are welcome!

edited Oct 28 '15 at 16:48

asked Oct 28 '15 at 16:41

kramer65

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have you tried `logging.basicConfig(level=logging.DEBUG)` at the top-level, before you create any flask bits? – Dima Tisnek Oct 28 '15 at 16:56
if all fails, set log level directly on `logging.root` in addition to your handler – Dima Tisnek Oct 28 '15 at 16:57
@qarma - That fixed it, thanks! If you add your comment as an answer I can select your answer. – kramer65 Oct 28 '15 at 17:08

How to set logging level in Flask?

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