topic After adding logging statements into Python script and running it via Splunk CLI, why are there no log messages in python.log? in Splunk Dev

After adding logging statements into Python script and running it via Splunk CLI, why are there no log messages in python.log?

ConnorG — Tue, 29 Dec 2015 14:12:24 GMT

I'm trying to debug a Python script and in doing so placed some logging statements into the script.

Following these posts for the basics:
Logging from Python in Splunk
Python logging in splunk

I'm going off the simple statement here
"You can also just call logging directly and your logs will appear in python.log:"

 logging.warning("Something bad happened: %s", "out of memory")

so my code looks just like

import logging
logging.info("message here")

Running it using the Splunk CLI command:

 splunk cmd python ./confcheck_correlation_searches.py

And yet still nothing in python.log. Any ideas what I'm missing here?

Re: After adding logging statements into Python script and running it via Splunk CLI, why are there no log messages in python.log?

jkat54 — Tue, 29 Dec 2015 14:18:56 GMT

The first link you showed has the answer wrapped up in a function. Here it is without being wrapped into a function:

# create logger object for logging - see https://docs.python.org/2/howto/logging.html for details
import logging
logger = logging.getLogger('confcheck_correlation_searches.py')
logger.setLevel(logging.DEBUG)
fh = logging.FileHandler('/var/log/splunk/confcheck_correlation_searches.log')
fh.setLevel(logging.DEBUG)
formatter = logging.Formatter('%(asctime)s | src="%(name)s" | lvl="%(levelname)s" | msg="%(message)s"')
fh.setFormatter(formatter)
logger.addHandler(fh)

Note, you may wish to change the formatter... i just grabbed the first example I had.

Re: After adding logging statements into Python script and running it via Splunk CLI, why are there no log messages in python.log?

ConnorG — Tue, 29 Dec 2015 16:50:08 GMT

Yes I noticed this, but if you read further down it also states that

"You can also just call logging directly and your logs will appear in python.log"

As I followed in my example.