./trac/env.py:                self.log.warn('base_url option not set in configuration, '
./trac/env.py:            self.log.warn('Couldn\'t write sample configuration file (%s)', e,
./trac/web/main.py:            ##    env.log.warn("%d uncollectable objects found.", uncollectable)
./trac/web/main.py:            env.log.warn(exception_to_unicode(e))
./trac/web/.svn/text-base/main.py.svn-base:            ##    env.log.warn("%d uncollectable objects found.", uncollectable)
./trac/web/.svn/text-base/main.py.svn-base:            env.log.warn(exception_to_unicode(e))
./trac/wiki/formatter.py:            self.env.log.warn(e)
./trac/wiki/.svn/text-base/formatter.py.svn-base:            self.env.log.warn(e)
./trac/versioncontrol/api.py:                        self.log.warn("Discarding duplicate repository '%s'",
./trac/versioncontrol/api.py:            self.log.warn("Found no repositories matching '%s' base.",
./trac/versioncontrol/svn_prop.py:                    self.log.warn("svn:externals entry %s doesn't contain "
./trac/versioncontrol/.svn/text-base/api.py.svn-base:                        self.log.warn("Discarding duplicate repository '%s'",
./trac/versioncontrol/.svn/text-base/api.py.svn-base:            self.log.warn("Found no repositories matching '%s' base.",
./trac/versioncontrol/.svn/text-base/svn_prop.py.svn-base:                    self.log.warn("svn:externals entry %s doesn't contain "
./trac/ticket/roadmap.py:        def warn(msg):
./trac/ticket/roadmap.py:                warn(_('Milestone "%(name)s" already exists, please '
./trac/ticket/roadmap.py:                warn(_('You must provide a name for the milestone.'))
./trac/ticket/roadmap.py:                warn(_('Completion date may not be in the future'))
./trac/ticket/.svn/text-base/roadmap.py.svn-base:        def warn(msg):
./trac/ticket/.svn/text-base/roadmap.py.svn-base:                warn(_('Milestone "%(name)s" already exists, please '
./trac/ticket/.svn/text-base/roadmap.py.svn-base:                warn(_('You must provide a name for the milestone.'))
./trac/ticket/.svn/text-base/roadmap.py.svn-base:                warn(_('Completion date may not be in the future'))
./trac/admin/web_ui.py:                        self.env.log.warn("Adding %s to group %s: " \
./trac/admin/.svn/text-base/web_ui.py.svn-base:                        self.env.log.warn("Adding %s to group %s: " \
./trac/prefs/web_ui.py:            self.log.warn('Unknown preference panel %r', panel_id)
./trac/prefs/.svn/text-base/web_ui.py.svn-base:            self.log.warn('Unknown preference panel %r', panel_id)
./trac/.svn/text-base/env.py.svn-base:                self.log.warn('base_url option not set in configuration, '
./trac/.svn/text-base/env.py.svn-base:            self.log.warn('Couldn\'t write sample configuration file (%s)', e,


quite a lot + probably trac plugins. So it's better to go through deprecation cycle and show appropriate message (but frankly - I don't mind against convenience alias - we already have some in testing modules).