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Diffstat (limited to 'Mailman/Logging/Utils.py')
-rw-r--r-- | Mailman/Logging/Utils.py | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/Mailman/Logging/Utils.py b/Mailman/Logging/Utils.py new file mode 100644 index 00000000..ef119fb0 --- /dev/null +++ b/Mailman/Logging/Utils.py @@ -0,0 +1,52 @@ +# Copyright (C) 1998,1999,2000,2001,2002 by the Free Software Foundation, Inc. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# as published by the Free Software Foundation; either version 2 +# of the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +import sys +import traceback + + +def _logexc(logger=None, msg=''): + sys.__stderr__.write('Logging error: %s\n' % logger) + traceback.print_exc(file=sys.__stderr__) + sys.__stderr__.write('Original log message:\n%s\n' % msg) + + +def LogStdErr(category, label, manual_reprime=1, tee_to_real_stderr=1): + """Establish a StampedLogger on sys.stderr if possible. + + If tee_to_real_stderr is true, then the real standard error also gets + output, via a MultiLogger. + + Returns the MultiLogger if successful, None otherwise. + """ + from StampedLogger import StampedLogger + from MultiLogger import MultiLogger + try: + logger = StampedLogger(category, + label=label, + manual_reprime=manual_reprime, + nofail=0) + if tee_to_real_stderr: + if hasattr(sys, '__stderr__'): + stderr = sys.__stderr__ + else: + stderr = sys.stderr + logger = MultiLogger(stderr, logger) + sys.stderr = logger + return sys.stderr + except IOError: + return None + |