import logging
logger = logging.getLogger(__name__)

# code without issues
logging.exception('foo', extra={'foo': 2, 'threadName2': "foo"})
logging.exception('msg', extra={'foo': 2, msg: 3, 3:4})
logging.exception('msg', extra=extra)

# code with issues
logging.exception('foo', extra={'foo': 2, 'msg': 3})
logging.exception('foo', extra={'foo': 2, 'threadName': "foo"})
