import logging
logger = logging.getLogger(__name__)

# code without errors
logging.error('foo', extra={{'bar'.format(2)}})
foo()
logging.info('Hello'.dada())
logging.info('Hello'.a.b())
logger.error(str(error))

# code with errors
logging.info('Hello'.format(1))
logging.info(str.format('Hello', 1))
logging.error('Hello'.format(1))
