Issue 5192: Update log message formatting. (original) (raw)

Issue5192

Created on 2009-02-09 16:44 by LambertDW, last changed 2022-04-11 14:56 by admin. This issue is now closed.

Messages (2)
msg81461 - (view)	Author: David W. Lambert (LambertDW)	Date: 2009-02-09 16:44
Allow logger object log message creation methods using ''.format method. have: logger_object.info('%s','lazy is better') logger_object.debug('{0!s}'.format('wasted effort')) want: logger_object.debug('{0}','Lazy') Work'rounds from pep282: if log.isEnabledFor(logging.INFO): hamletStr = hamletDom.toxml() log.info(hamletStr) or install custom Formatter. I presume this is already on the back burner. Incidentally, BufferingFormatter.format uses string += string instead of ''.join(list_of_strings).
msg82360 - (view)	Author: Vinay Sajip (vinay.sajip) *	Date: 2009-02-17 19:29
Isn't there a backward compatibility problem? If a message format string contains both "%s" and "{0}", how is logging supposed to know what to use - a % b or a.format(b)? The way to do it is a custom Formatter, as you've indicated.