Python Logging Module logging timestamp to include microsecond

Question

I am using python's logging module for logs, but needed the timestamp to include microsecond. It seems the timestamp can only get as precise as millisecond. Here's my test code

import logging

logging.basicConfig(format='%(asctime)s %(levelname)s {%(module)s} [%(funcName)s] %(message)s',

    datefmt='%Y-%m-%d,%H:%M:%S:%f', level=logging.INFO)

class log2_test():

    def test_class(self):

        logging.warning("Warning2 inside the class")

def get_started2():

    logging.info("Logged2 Here")

if __name__ == '__main__':
    get_started2()

Here's the output I get --

2015-07-09,16:36:37:f INFO {logger} [get_started2] Logged2 Here

Somehow, %f is not recognized. Python version is 2.7.6.

How do I get the timestamp to include microseconds? Thanks in advance.

Answer 1

According to the documentation, strftime() does not support %f. The logger provides milliseconds as a separate msecs attribute, so you could just add it yourself after the existing timestamp as follows:

logging.basicConfig(format='%(asctime)s.%(msecs)03d %(levelname)s {%(module)s} [%(funcName)s] %(message)s', datefmt='%Y-%m-%d,%H:%M:%S', level=logging.INFO)

This gave me the following output using your script:

2015-07-10,09:21:16.841 INFO {test script} [get_started2] Logged2 Here