[issue5192] Update log message formatting.

[Vinay Sajip]

Changes by Vinay Sajip vinay_sa...@yahoo.co.uk:


--
resolution: wont fix - rejected

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[issue5192] Update log message formatting.

[Vinay Sajip]

Vinay Sajip vinay_sa...@yahoo.co.uk added the comment:

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.

--
nosy: +vsajip
resolution:  - wont fix
status: open - closed

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[issue5192] Update log message formatting.

[David W. Lambert]

New submission from David W. Lambert lamber...@corning.com:

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).

--
components: Library (Lib)
messages: 81461
nosy: LambertDW
severity: normal
status: open
title: Update log message formatting.
type: feature request
versions: Python 3.0, Python 3.1

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