timezone_logging

Logging with timezone in Python 2.7

Problem

• The standard logging package in Python 2.7 does not support timezone.

# In a system whose timezone is set to America/Chicago
import logging
logging.basicConfig(format='%(asctime)s %(message)s', datefmt='%Y-%m-%d %H:%M:%S%z')
logger = logging.getLogger('demo')
logger.info('hello')
# 2017-10-12 23:29:00+0000 hello
# Note the '+0000' (not recognizing local timezone even when %z is provided to the datefmt argument in logging.basicConfig)
# The time itself was in the local timezone

• This is usually not a big problem but our platform runs in multiple sites across the world that we needed to know the exact time of logs from sites in different timezones

Solution

• Install this package

pip install timezone_logging

• Use it like below

from timezone_logging.timezone_logging import get_timezone_logger
logger = get_timezone_logger('demo')
logger.info('hello')
# 2017-10-12T23:29:00Z-0500 demo                     INFO     hello

Source

• This package is based on jfs' answer on StackOverflow https://stackoverflow.com/questions/27858539/python-logging-module-emits-wrong-timezone-information

Contact

• Knowru, LLC (hello@knowru.com / https://www.knowru.com)