/usr/lib/python2.7/dist-packages/linkcheck/log.py is in linkchecker 9.3-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright (C) 2003-2014 Bastian Kleineidam
#
# 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.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
"""
Logging and debug functions.
"""
import logging
import os
import inspect
import traceback
try:
from cStringIO import StringIO
except ImportError:
from StringIO import StringIO
# memory leak debugging
#import gc
#gc.enable()
#gc.set_debug(gc.DEBUG_LEAK)
PRINT_LOCALVARS = False
def _stack_format (stack):
"""Format a stack trace to a message.
@return: formatted stack message
@rtype: string
"""
s = StringIO()
s.write('Traceback:')
s.write(os.linesep)
for frame, fname, lineno, method, lines, dummy in reversed(stack):
s.write(' File %r, line %d, in %s' % (fname, lineno, method))
s.write(os.linesep)
s.write(' %s' % lines[0].lstrip())
if PRINT_LOCALVARS:
for key, value in frame.f_locals.items():
s.write(" %s = " % key)
# be careful not to cause a new error in the error output
try:
s.write(repr(value))
s.write(os.linesep)
except StandardError:
s.write("error in repr() call%s" % os.linesep)
return s.getvalue()
def _log (fun, msg, args, **kwargs):
"""Log a message with given function. Optional the following keyword
arguments are supported:
traceback(bool) - if True print traceback of current function
exception(bool) - if True print last exception traceback
@return: None
"""
fun(msg, *args)
if kwargs.get("traceback"):
# note: get rid of last parts of the stack
fun(_stack_format(inspect.stack()[2:]))
if kwargs.get("exception"):
fun(traceback.format_exc())
def debug (logname, msg, *args, **kwargs):
"""Log a debug message.
return: None
"""
log = logging.getLogger(logname)
if log.isEnabledFor(logging.DEBUG):
_log(log.debug, msg, args, **kwargs)
def info (logname, msg, *args, **kwargs):
"""Log an informational message.
return: None
"""
log = logging.getLogger(logname)
if log.isEnabledFor(logging.INFO):
_log(log.info, msg, args, **kwargs)
def warn (logname, msg, *args, **kwargs):
"""Log a warning.
return: None
"""
log = logging.getLogger(logname)
if log.isEnabledFor(logging.WARN):
_log(log.warn, msg, args, **kwargs)
def error (logname, msg, *args, **kwargs):
"""Log an error.
return: None
"""
log = logging.getLogger(logname)
if log.isEnabledFor(logging.ERROR):
_log(log.error, msg, args, **kwargs)
def critical (logname, msg, *args, **kwargs):
"""Log a critical error.
return: None
"""
log = logging.getLogger(logname)
if log.isEnabledFor(logging.CRITICAL):
_log(log.critical, msg, args, **kwargs)
def exception (logname, msg, *args, **kwargs):
"""Log an exception.
return: None
"""
log = logging.getLogger(logname)
if log.isEnabledFor(logging.ERROR):
_log(log.exception, msg, args, **kwargs)
def is_debug (logname):
"""See if logger is on debug level."""
return logging.getLogger(logname).isEnabledFor(logging.DEBUG)
def shutdown ():
"""Flush and close all log handlers."""
logging.shutdown()
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