Python logging.Formatter() Examples

def create_logger():
    """
        Setup the logging environment
    """
    log = logging.getLogger()  # root logger
    log.setLevel(logging.INFO)
    format_str = '%(asctime)s - %(levelname)-8s - %(message)s'
    date_format = '%Y-%m-%d %H:%M:%S'
    if HAVE_COLORLOG and os.isatty(2):
        cformat = '%(log_color)s' + format_str
        colors = {'DEBUG': 'reset',
                  'INFO': 'reset',
                  'WARNING': 'bold_yellow',
                  'ERROR': 'bold_red',
                  'CRITICAL': 'bold_red'}
        formatter = colorlog.ColoredFormatter(cformat, date_format,
                                              log_colors=colors)
    else:
        formatter = logging.Formatter(format_str, date_format)
    stream_handler = logging.StreamHandler()
    stream_handler.setFormatter(formatter)
    log.addHandler(stream_handler)
    return logging.getLogger(__name__) 

def configure_logging(path_to_log_directory):
    """
    Configure logger

    :param path_to_log_directory:  path to directory to write log file in
    :return:
    """
    log_filename = datetime.datetime.now().strftime('%Y-%m-%d') + '.log'
    importer_logger = logging.getLogger('importer_logger')
    importer_logger.setLevel(LOG_LEVEL)
    formatter = logging.Formatter('%(asctime)s : %(levelname)s : %(message)s')

    fh = logging.FileHandler(filename=os.path.join(path_to_log_directory, log_filename))
    fh.setLevel(LOG_LEVEL)
    fh.setFormatter(formatter)
    importer_logger.addHandler(fh)

    sh = logging.StreamHandler(sys.stdout)
    sh.setLevel(LOG_LEVEL)
    sh.setFormatter(formatter)
    importer_logger.addHandler(sh) 

def init_logger(self, args):
        level = logging.INFO
        if args.verbose:
            level = logging.VERBOSE
        if args.debug:
            level = logging.DEBUG
        logging.basicConfig(format='%(asctime)s [%(levelname)s] %(message)s',
                            level=level)

        Rthandler = RotatingFileHandler('arbitrage.log', maxBytes=100*1024*1024,backupCount=10)
        Rthandler.setLevel(level)
        formatter = logging.Formatter('%(asctime)-12s [%(levelname)s] %(message)s')  
        Rthandler.setFormatter(formatter)
        logging.getLogger('').addHandler(Rthandler)

        logging.getLogger("requests").setLevel(logging.WARNING)
        logging.getLogger("urllib3").setLevel(logging.WARNING) 

def __init__(self,loggerName,logFileName,doConsoleLogging):
	#Formatage log 
	default_formatter = logging.Formatter('%(asctime)s :: %(levelname)s :: '+loggerName+' :: %(message)s')
	console_formatter = logging.Formatter('%(levelname)s :: %(message)s')

	self.mainLogger = logging.getLogger('logger.'+logFileName+'') #on nomme le logger
	self.mainLogger.setLevel(logging.DEBUG) #on met le niveau du logger sur DEBUG, comme ca il ecrit tout

	#Log vers la console
	if doConsoleLogging:
	 console_handler = logging.StreamHandler()
	 console_handler.setLevel(logging.DEBUG)
	 console_handler.setFormatter(console_formatter)
	 self.mainLogger.addHandler(console_handler)

	# creation d'un handler qui va rediriger une ecriture du log vers
	# un fichier en mode 'append', avec 1 backup et une taille max de 1Mo
	file_handler = RotatingFileHandler('/mnt/Usb-Solo-Mapper/Logs/'+logFileName+'.log', 'a', 1000000, 1)
	# on lui met le niveau sur DEBUG, on lui dit qu'il doit utiliser le formateur
	# cree precedement et on ajoute ce handler au logger
	file_handler.setLevel(logging.DEBUG)
	file_handler.setFormatter(default_formatter)
	self.mainLogger.addHandler(file_handler) 

def init_logging(logfile):
    formatter = logging.Formatter('%(asctime)s [%(levelname)s] %(module)s: %(message)s',
                                  datefmt='%m/%d/%Y %H:%M:%S'   )
    fh = logging.FileHandler(logfile)
    # ch = logging.StreamHandler()

    fh.setFormatter(formatter)
    # ch.setFormatter(formatter)
    # fh.setLevel(logging.INFO)
    # ch.setLevel(logging.INFO)
    # logging.getLogger().addHandler(ch)
    logging.getLogger().addHandler(fh)
    logging.getLogger().setLevel(logging.INFO)
    return logging

# prepare logging. 

def init_logging(logfile):
    formatter = logging.Formatter('%(asctime)s [%(levelname)s] %(module)s: %(message)s',
                                  datefmt='%m/%d/%Y %H:%M:%S'   )
    fh = logging.FileHandler(logfile)
    # ch = logging.StreamHandler()

    fh.setFormatter(formatter)
    # ch.setFormatter(formatter)
    # fh.setLevel(logging.INFO)
    # ch.setLevel(logging.INFO)
    # logging.getLogger().addHandler(ch)
    logging.getLogger().addHandler(fh)
    logging.getLogger().setLevel(logging.INFO)

    return logging

# prepare logging. 

def get(cls, tag):
        """
        Get the global logger instance for the given tag

        :param tag: the log tag
        :return: the logger instance
        """
        if tag not in cls._LOGGERS:
            if cls._use_color:
                handler = colorlog.StreamHandler()
                handler.setFormatter(colorlog.ColoredFormatter( \
                    ' %(log_color)s%(name)s/%(levelname)-8s%(reset)s |'
                    ' %(log_color)s%(message)s%(reset)s'))
            else:
                handler = logging.StreamHandler()
                handler.setFormatter(logging.Formatter( \
                    ' %(name)s/%(levelname)-8s | %(message)s'))

            logger = logging.getLogger(tag)
            logger.addHandler(handler)

            cls._LOGGERS[tag] = logger

        return cls._LOGGERS[tag] 

def init_logger(logger_name):

        # initialize logger
        log = logging.getLogger(logger_name)
        _h = logging.FileHandler('%s/%s' % (
            cfg.CONF.service.service_log_path,
            cfg.CONF.service.service_log_filename))
        _h.setFormatter(logging.Formatter("'%(asctime)s - %(pathname)s:"
                                          "%(lineno)s - %(levelname)s"
                                          " - %(message)s'"))
        log.addHandler(_h)
        if cfg.CONF.service.enable_debug_log_entries:
            log.setLevel(logging.DEBUG)
        else:
            log.setLevel(logging.INFO)

        return log 

def configure_logging(self):
        """
        Configure logging to log to std output as well as to log file
        """
        log_level = logging.DEBUG

        log_filename = datetime.now().strftime('%Y-%m-%d') + '.log'
        sp_logger = logging.getLogger('sp_logger')
        sp_logger.setLevel(log_level)
        formatter = logging.Formatter('%(asctime)s : %(levelname)s : %(message)s')

        fh = logging.FileHandler(filename=self.log_dir + log_filename)
        fh.setLevel(log_level)
        fh.setFormatter(formatter)
        sp_logger.addHandler(fh)

        sh = logging.StreamHandler(sys.stdout)
        sh.setLevel(log_level)
        sh.setFormatter(formatter)
        sp_logger.addHandler(sh) 

def add_stderr_logger(level=logging.DEBUG):
    """
    Helper for quickly adding a StreamHandler to the logger. Useful for
    debugging.

    Returns the handler after adding it.
    """
    # This method needs to be in this __init__.py to get the __name__ correct
    # even if urllib3 is vendored within another package.
    logger = logging.getLogger(__name__)
    handler = logging.StreamHandler()
    handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s %(message)s'))
    logger.addHandler(handler)
    logger.setLevel(level)
    logger.debug('Added a stderr logging handler to logger: %s', __name__)
    return handler

# ... Clean up. 

def configureLogging(level, console, file):
    logger = logging.getLogger()    
    logger.setLevel(level)
    formatter = logging.Formatter('%(asctime)s  %(levelname)s   %(message)s')
    if console:
        cons = logging.StreamHandler()
        cons.setLevel(level)
        cons.setFormatter(formatter)
        logger.addHandler(cons)
        print("logging to console")
        
    if file:              
        f = logging.FileHandler(file)        
        f.setLevel(level)
        f.setFormatter(formatter)
        logger.addHandler(f)        
        print("logging to file {0}".format(file)) 

def setup_logging():
    '''Sets up internal logging. Run this once at startup.'''

    logger = logging.getLogger()

    formatter = logging.Formatter('%(asctime)s - %(levelname)s - %(message)s')
    if options.log.filename:
        handler = logging.handlers.TimedRotatingFileHandler(filename=options.log.filename, when=options.log.when, backupCount=options.log.backup_count, utc=True)
        handler.setFormatter(formatter)
        logger.addHandler(handler)

    if not options.main.daemon:
        handler = logging.StreamHandler()
        handler.setFormatter(formatter)
        logger.addHandler(handler)

    level = getattr(logging, options.log.level.upper())
    logger.setLevel(level) 

def add_stderr_logger(level=logging.DEBUG):
    """
    Helper for quickly adding a StreamHandler to the logger. Useful for
    debugging.

    Returns the handler after adding it.
    """
    # This method needs to be in this __init__.py to get the __name__ correct
    # even if urllib3 is vendored within another package.
    logger = logging.getLogger(__name__)
    handler = logging.StreamHandler()
    handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s %(message)s'))
    logger.addHandler(handler)
    logger.setLevel(level)
    logger.debug('Added a stderr logging handler to logger: %s', __name__)
    return handler


# ... Clean up. 

def add_stderr_logger(level=logging.DEBUG):
    """
    Helper for quickly adding a StreamHandler to the logger. Useful for
    debugging.

    Returns the handler after adding it.
    """
    # This method needs to be in this __init__.py to get the __name__ correct
    # even if urllib3 is vendored within another package.
    logger = logging.getLogger(__name__)
    handler = logging.StreamHandler()
    handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s %(message)s'))
    logger.addHandler(handler)
    logger.setLevel(level)
    logger.debug('Added a stderr logging handler to logger: %s', __name__)
    return handler

# ... Clean up. 

def main():
    # Set up a console logger.
    console = logging.StreamHandler()
    formatter = logging.Formatter("%(asctime)s %(name)-12s:%(levelname)-8s: %(message)s")
    console.setFormatter(formatter)
    logging.getLogger().addHandler(console)
    logging.getLogger().setLevel(logging.INFO)

    kw = {}
    longopts = ['domainname=', 'verbose']
    opts, args = getopt.getopt(sys.argv[1:], 'v', longopts)
    for opt, val in opts:
        if opt == '--domainname':
            kw['domainName'] = val
        if opt in ['-v', '--verbose']:
            kw['verbose'] = True

    a = QApplication(sys.argv)
    QObject.connect(a,SIGNAL("lastWindowClosed()"),a,SLOT("quit()"))
    w = BrowseWindow(**kw)
    w.show()
    a.exec_() 

def log_to_stderr(level=None):
    '''
    Turn on logging and add a handler which prints to stderr
    '''
    global _log_to_stderr
    import logging

    logger = get_logger()
    formatter = logging.Formatter(DEFAULT_LOGGING_FORMAT)
    handler = logging.StreamHandler()
    handler.setFormatter(formatter)
    logger.addHandler(handler)

    if level:
        logger.setLevel(level)
    _log_to_stderr = True
    return _logger

#
# Function returning a temp directory which will be removed on exit
# 

def configure_formatter(self, config):
        """Configure a formatter from a dictionary."""
        if '()' in config:
            factory = config['()'] # for use in exception handler
            try:
                result = self.configure_custom(config)
            except TypeError, te:
                if "'format'" not in str(te):
                    raise
                #Name of parameter changed from fmt to format.
                #Retry with old name.
                #This is so that code can be used with older Python versions
                #(e.g. by Django)
                config['fmt'] = config.pop('format')
                config['()'] = factory
                result = self.configure_custom(config)
        else:
            fmt = config.get('format', None)
            dfmt = config.get('datefmt', None)
            result = logging.Formatter(fmt, dfmt)
        return result 

def instantiate(p):
  print("*** instantiate ***")
  print(p)
  with rlock:
    global logger
    logger = logging.getLogger("freepydius-logger")
    logger.setLevel(logging.INFO)
    handler = TimedRotatingFileHandler(_LOG_FILE,
                                       when="midnight",
                                       interval=1)
    formatter = logging.Formatter("%(asctime)s %(message)s")
    handler.setFormatter(formatter)
    logger.addHandler(handler)
    log = Log("INSTANCE")
    log.log(( ('Response', 'created'), ))
  # return 0 for success or -1 for failure
  return 0 

def add_stderr_logger(level=logging.DEBUG):
    """
    Helper for quickly adding a StreamHandler to the logger. Useful for
    debugging.

    Returns the handler after adding it.
    """
    # This method needs to be in this __init__.py to get the __name__ correct
    # even if urllib3 is vendored within another package.
    logger = logging.getLogger(__name__)
    handler = logging.StreamHandler()
    handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s %(message)s'))
    logger.addHandler(handler)
    logger.setLevel(level)
    logger.debug('Added a stderr logging handler to logger: %s', __name__)
    return handler


# ... Clean up. 

def main():
    """
    Called as a console_scripts entry point in setup.py. This function defines
    the manubot command line script.
    """
    # Track if message gets logged with severity of error or greater
    # See https://stackoverflow.com/a/45446664/4651668
    error_handler = errorhandler.ErrorHandler()

    # Log to stderr
    logger = logging.getLogger()
    stream_handler = logging.StreamHandler(stream=sys.stderr)
    stream_handler.setFormatter(logging.Formatter('## {levelname}\n{message}', style='{'))
    logger.addHandler(stream_handler)

    args = parse_arguments()
    logger.setLevel(getattr(logging, args.log_level))

    prepare_manuscript(args)

    if error_handler.fired:
        logging.critical('Failure: exiting with code 1 due to logged errors')
        raise SystemExit(1) 

def logger(level, name, logfile):
        """ Create and configure file and console logging.
        :param level: console debugging level only.
        :param name: logger name
        :param logfile: log destination file name
        :return: configured logging object
        """
        logger = logging.getLogger(name)
        console_handler = logging.StreamHandler()
        console_handler.setLevel(level)
        file_handler = logging.FileHandler(logfile)
        file_handler.setLevel(logging.DEBUG)
        console_formatter = logging.Formatter("[%(levelname)s] %(message)s")
        file_formatter = logging.Formatter("%(asctime)s - %(name)s - %(levelname)s - %(message)s")
        console_handler.setFormatter(console_formatter)
        file_handler.setFormatter(file_formatter)
        logger.addHandler(console_handler)
        logger.addHandler(file_handler)

        return logger 

def __syslog_handler_init(self):
        """
        Initialize the syslog handler if it hasn't been
        """
        if self.syslog_handler is None:
            try:
                # TODO: /dev/log is Linux-specific.
                self.syslog_handler = logging.handlers.SysLogHandler(
                    '/dev/log', facility=self.facility)
                self.syslog_handler.setFormatter(
                    logging.Formatter(
                        fmt='%(name)s %(levelname)-8s %(message)s'
                    )
                )
                self.logger.addHandler(self.syslog_handler)
            except:
                self.__syslog_handler_deinit() 

def format(self, record):

        format_orig = self._fmt

        if record.levelno == self.plain_log_level:
            self._fmt = self.plain_format
            self._style._fmt = self._fmt

        result = logging.Formatter.format(self, record)

        self._fmt = format_orig
        self._style._fmt = self._fmt
        return result


# Add a class to emulate stdout/stderr 

def add_stderr_logger(level=logging.DEBUG):
    """
    Helper for quickly adding a StreamHandler to the logger. Useful for
    debugging.

    Returns the handler after adding it.
    """
    # This method needs to be in this __init__.py to get the __name__ correct
    # even if urllib3 is vendored within another package.
    logger = logging.getLogger(__name__)
    handler = logging.StreamHandler()
    handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s %(message)s'))
    logger.addHandler(handler)
    logger.setLevel(level)
    logger.debug('Added a stderr logging handler to logger: %s', __name__)
    return handler


# ... Clean up. 

def __init__(self, debug=False, logfile=None):
        logging.Logger.__init__(self, 'VirtualBMC')
        try:
            if logfile is not None:
                self.handler = logging.FileHandler(logfile)
            else:
                self.handler = logging.StreamHandler()

            formatter = logging.Formatter(DEFAULT_LOG_FORMAT)
            self.handler.setFormatter(formatter)
            self.addHandler(self.handler)

            if debug:
                self.setLevel(logging.DEBUG)
            else:
                self.setLevel(logging.INFO)

        except IOError, e:
            if e.errno == errno.EACCES:
                pass 

def configure_logging(debug):
    '''Sets the data kennel logger to appropriate levels of chattiness.'''
    default_logger = logging.getLogger('')
    datadog_logger = logging.getLogger('datadog.api')
    requests_logger = logging.getLogger('requests')
    if debug:
        default_logger.setLevel(logging.DEBUG)
        datadog_logger.setLevel(logging.INFO)
        requests_logger.setLevel(logging.INFO)
    else:
        default_logger.setLevel(logging.INFO)
        datadog_logger.setLevel(logging.WARNING)
        requests_logger.setLevel(logging.WARNING)

    stream_handler = logging.StreamHandler(sys.__stdout__)
    stream_handler.setLevel(logging.DEBUG)
    stream_handler.setFormatter(logging.Formatter('%(asctime)s %(name)s %(levelname)s %(message)s'))
    default_logger.addHandler(stream_handler) 

def add_stderr_logger(level=logging.DEBUG):
    """
    Helper for quickly adding a StreamHandler to the logger. Useful for
    debugging.

    Returns the handler after adding it.
    """
    # This method needs to be in this __init__.py to get the __name__ correct
    # even if urllib3 is vendored within another package.
    logger = logging.getLogger(__name__)
    handler = logging.StreamHandler()
    handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s %(message)s'))
    logger.addHandler(handler)
    logger.setLevel(level)
    logger.debug('Added an stderr logging handler to logger: %s' % __name__)
    return handler

# ... Clean up. 

def add_stderr_logger(level=logging.DEBUG):
    """
    Helper for quickly adding a StreamHandler to the logger. Useful for
    debugging.

    Returns the handler after adding it.
    """
    # This method needs to be in this __init__.py to get the __name__ correct
    # even if urllib3 is vendored within another package.
    logger = logging.getLogger(__name__)
    handler = logging.StreamHandler()
    handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s %(message)s'))
    logger.addHandler(handler)
    logger.setLevel(level)
    logger.debug('Added a stderr logging handler to logger: %s', __name__)
    return handler


# ... Clean up. 

def set_logger(self, s):
        logger = logging.getLogger(self.__class__.__name__)
        # create console handler and set level to debug
        if ('logging_file' not in s) or (s['logging_file'] == None):
            fh = logging.StreamHandler()
        else:
            fh = logging.FileHandler(s['logging_file'])
        if 'logging_level' in s:
            fh.setLevel(s['logging_level'])
        else:
            fh.setLevel(logging.DEBUG)
        # create formatter
        formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
        fh.setFormatter(formatter)

        # add console stdout or log file to logger
        logger.addHandler(fh)
        self.logger = logger  # usage: self.logger.debug(msg) 

def add_stderr_logger(level=logging.DEBUG):
    """
    Helper for quickly adding a StreamHandler to the logger. Useful for
    debugging.

    Returns the handler after adding it.
    """
    # This method needs to be in this __init__.py to get the __name__ correct
    # even if urllib3 is vendored within another package.
    logger = logging.getLogger(__name__)
    handler = logging.StreamHandler()
    handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s %(message)s'))
    logger.addHandler(handler)
    logger.setLevel(level)
    logger.debug('Added a stderr logging handler to logger: %s', __name__)
    return handler

# ... Clean up. 

def logger(level='DEBUG', name=""):
    fmt = '[%(module)s] %(asctime)s %(levelname)-7.7s %(message)s'
    dfmt = '%Y-%m-%d %H:%M:%S'
    level = getattr(logging, level, DEBUG)

    logger = getLogger('services')
    logger.setLevel(level)
    fmter = Formatter(fmt, dfmt)
    del logger.handlers[:]

    if name:
        fh = FileHandler(name)
        fh.setLevel(level)
        fh.setFormatter(fmter)
        logger.addHandler(fh)

    ch = StreamHandler()
    ch.setLevel(level)
    ch.setFormatter(fmter)
    logger.addHandler(ch)
    logger.propagate = False

    return logger 

def create_logger():
    #logging.basicConfig(format='%(levelname)s - %(message)s')
    logging.basicConfig(format='%(message)s')

    root = logging.getLogger()
    root.setLevel(logging.getLevelName('INFO'))

    #Add handler for standard output (console) any debug+
    #ch = logging.StreamHandler(sys.stdout)
    #ch.setLevel(logging.getLevelName('DEBUG'))
    #formatter = logging.Formatter('%(message)s')
    #ch.setFormatter(formatter)
    #handler = ColorStreamHandler()
    #handler.setLevel(logging.getLevelName("DEBUG"))
    #root.addHandler(handler)
    
    return root 

def __init__(self, name = ''):
        conf = com_config.Config()
        self.config = conf.getconfig()
        
        self.logger = logging.Logger(name, logging.DEBUG)
        self.logger.name = name
        
        # Formatter
        formatterfile = logging.Formatter('%(asctime)s %(levelname)s : %(name)s - %(message)s', datefmt='%d/%m/%Y %H:%M:%S')
        formatterconsole = colorlog.ColoredFormatter('%(asctime)s %(log_color)s%(levelname)s : %(name)s - %(message)s', datefmt='%d/%m/%Y %H:%M:%S',
                                                     log_colors={'DEBUG':    'white', 'INFO': 'green',
                                                                 'WARNING':  'bold_yellow', 'ERROR': 'bold_red',
                                                                 'CRITICAL': 'bold_red'})
        
        # First logger (file)
        self.logger.setLevel(logging.DEBUG)
        file_handler = RotatingFileHandler(self.config['LOGGER']['logfile'], 'a', int(self.config['LOGGER']['logfilesize']), 1)
        file_handler.setLevel(int(self.config['LOGGER']['levelfile']))
        file_handler.setFormatter(formatterfile)
        self.logger.addHandler(file_handler)
        
        # second logger (console)
        steam_handler = logging.StreamHandler()
        steam_handler.setLevel(int(self.config['LOGGER']['levelconsole']))
        steam_handler.setFormatter(formatterconsole)
        self.logger.addHandler(steam_handler) 

def run(context, config):
    config_obj = load_config(config)

    log_config = config_obj['LOG']

    # Configure root logger if logging level is specified in config
    if log_config['level']:
        level = getattr(logging, log_config['level'])
        logger = logging.getLogger()
        logger.setLevel(level)
        formatter = logging.Formatter(log_config['format'])
        sh = logging.StreamHandler()
        sh.setFormatter(formatter)
        logger.addHandler(sh)

    if log_config['setup_structlog']:
        setup_structlog(sys.stdout.isatty())

    shark = SocketShark(config_obj)
    try:
        shark.start()
    except Exception:
        shark.log.exception('unhandled exception')
        raise 

def __init__(self, **kwargs):
        super(Feature, self).__init__(**kwargs)
        self.result_file = "{}/{}.log".format(
            CONST.__getattribute__('dir_results'), self.case_name)
        try:
            module = kwargs['run']['module']
            self.logger = logging.getLogger(module)
        except KeyError:
            self.__logger.warning(
                "Cannot get module name %s. Using %s as fallback",
                kwargs, self.case_name)
            self.logger = logging.getLogger(self.case_name)
        handler = logging.StreamHandler()
        handler.setLevel(logging.WARN)
        self.logger.addHandler(handler)
        handler = logging.FileHandler(self.result_file)
        handler.setLevel(logging.DEBUG)
        self.logger.addHandler(handler)
        formatter = logging.Formatter(
            '%(asctime)s - %(name)s - %(levelname)s - %(message)s')
        handler.setFormatter(formatter)
        self.logger.addHandler(handler) 

def init_logging():
    main_logger = logging.getLogger()

    formatter = logging.Formatter(
        fmt='%(asctime)s.%(msecs)03d %(levelname)-8s [%(name)s] %(message)s'
        , datefmt='%Y-%m-%d %H:%M:%S')
    
    handler_stream = logging.StreamHandler(sys.stdout)
    handler_stream.setFormatter(formatter)
    main_logger.addHandler(handler_stream)
    
    if LOG_TO_FILE:
        handler_file = logging.handlers.RotatingFileHandler("debug.log"
            , maxBytes = 2**24
            , backupCount = 10)
        handler_file.setFormatter(formatter)
        main_logger.addHandler(handler_file)
    
    main_logger.setLevel(logging.DEBUG)
    
    return main_logger

# ============================================================================ 

def setup_logging(app):
    """Setup logging."""
    from logging.handlers import RotatingFileHandler
    from logging import Formatter
    log_file_path = app.config.get('LOG_FILE')
    log_level = app.config.get('LOG_LEVEL', logging.WARN)
    if log_file_path:  # pragma: no cover
        file_handler = RotatingFileHandler(log_file_path)
        file_handler.setFormatter(Formatter(
            '%(name)s:%(levelname)s:[%(asctime)s] %(message)s '
            '[in %(pathname)s:%(lineno)d]'
            ))
        file_handler.setLevel(log_level)
        app.logger.addHandler(file_handler)
        logger = logging.getLogger('pybossa')
        logger.setLevel(log_level)
        logger.addHandler(file_handler) 

def setuplogger(consolelevel, filename=None, filelevel=None):
    """ setup the python root logger to log to the console with defined log
        level. Optionally also log to file with the provided level """

    if filelevel == None:
        filelevel = consolelevel

    if sys.version.startswith("2.7"):
        logging.captureWarnings(True)

    rootlogger = logging.getLogger()
    rootlogger.setLevel(min(consolelevel, filelevel))

    formatter = logging.Formatter('%(asctime)s.%(msecs)03d [%(levelname)s] %(message)s', datefmt='%Y-%m-%dT%H:%M:%S')

    if filename != None:
        filehandler = logging.FileHandler(filename)
        filehandler.setLevel(filelevel)
        filehandler.setFormatter(formatter)
        rootlogger.addHandler(filehandler)

    consolehandler = logging.StreamHandler()
    consolehandler.setLevel(consolelevel)
    consolehandler.setFormatter(formatter)
    rootlogger.addHandler(consolehandler) 

def add_stderr_logger(level=logging.DEBUG):
    """
    Helper for quickly adding a StreamHandler to the logger. Useful for
    debugging.

    Returns the handler after adding it.
    """
    # This method needs to be in this __init__.py to get the __name__ correct
    # even if urllib3 is vendored within another package.
    logger = logging.getLogger(__name__)
    handler = logging.StreamHandler()
    handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s %(message)s'))
    logger.addHandler(handler)
    logger.setLevel(level)
    logger.debug('Added a stderr logging handler to logger: %s', __name__)
    return handler

# ... Clean up. 

def init_logging(logfile):
    formatter = logging.Formatter('%(asctime)s [%(levelname)s] %(module)s: %(message)s',
                                  datefmt='%m/%d/%Y %H:%M:%S'   )
    fh = logging.FileHandler(logfile)
    # ch = logging.StreamHandler()

    fh.setFormatter(formatter)
    # ch.setFormatter(formatter)
    # fh.setLevel(logging.INFO)
    # ch.setLevel(logging.INFO)
    # logging.getLogger().addHandler(ch)
    logging.getLogger().addHandler(fh)
    logging.getLogger().setLevel(logging.INFO)

    return logging

# prepare logging. 

def init_logging(logfile):
    formatter = logging.Formatter('%(asctime)s [%(levelname)s] %(module)s: %(message)s',
                                  datefmt='%m/%d/%Y %H:%M:%S'   )
    fh = logging.FileHandler(logfile)
    # ch = logging.StreamHandler()

    fh.setFormatter(formatter)
    # ch.setFormatter(formatter)
    # fh.setLevel(logging.INFO)
    # ch.setLevel(logging.INFO)
    # logging.getLogger().addHandler(ch)
    logging.getLogger().addHandler(fh)
    logging.getLogger().setLevel(logging.INFO)

    return logging

# prepare logging. 

def init_logging(logfile):
    formatter = logging.Formatter('%(asctime)s [%(levelname)s] %(module)s: %(message)s',
                                  datefmt='%m/%d/%Y %H:%M:%S'   )
    fh = logging.FileHandler(logfile)
    # ch = logging.StreamHandler()

    fh.setFormatter(formatter)
    # ch.setFormatter(formatter)
    # fh.setLevel(logging.INFO)
    # ch.setLevel(logging.INFO)
    # logging.getLogger().addHandler(ch)
    logging.getLogger().addHandler(fh)
    logging.getLogger().setLevel(logging.INFO)

    return logging

# prepare logging. 

def init_logging(logfile):
    formatter = logging.Formatter('%(asctime)s [%(levelname)s] %(module)s: %(message)s',
                                  datefmt='%m/%d/%Y %H:%M:%S'   )
    fh = logging.FileHandler(logfile)
    # ch = logging.StreamHandler()

    fh.setFormatter(formatter)
    # ch.setFormatter(formatter)
    # fh.setLevel(logging.INFO)
    # ch.setLevel(logging.INFO)
    # logging.getLogger().addHandler(ch)
    logging.getLogger().addHandler(fh)
    logging.getLogger().setLevel(logging.INFO)

    return logging

# prepare logging. 

def init_logging(logfile):
    formatter = logging.Formatter('%(asctime)s [%(levelname)s] %(module)s: %(message)s',
                                  datefmt='%m/%d/%Y %H:%M:%S'   )
    fh = logging.FileHandler(logfile)
    # ch = logging.StreamHandler()

    fh.setFormatter(formatter)
    # ch.setFormatter(formatter)
    # fh.setLevel(logging.INFO)
    # ch.setLevel(logging.INFO)
    # logging.getLogger().addHandler(ch)
    logging.getLogger().addHandler(fh)
    logging.getLogger().setLevel(logging.INFO)

    return logging

# prepare logging. 

def init_logging(logfile):
    formatter = logging.Formatter('%(asctime)s [%(levelname)s] %(module)s: %(message)s',
                                  datefmt='%m/%d/%Y %H:%M:%S'   )
    fh = logging.FileHandler(logfile)
    # ch = logging.StreamHandler()

    fh.setFormatter(formatter)
    # ch.setFormatter(formatter)
    # fh.setLevel(logging.INFO)
    # ch.setLevel(logging.INFO)
    # logging.getLogger().addHandler(ch)
    logging.getLogger().addHandler(fh)
    logging.getLogger().setLevel(logging.INFO)

    return logging

# prepare logging. 

def init_logging(logfile):
    formatter = logging.Formatter('%(asctime)s [%(levelname)s] %(module)s: %(message)s',
                                  datefmt='%m/%d/%Y %H:%M:%S'   )
    fh = logging.FileHandler(logfile)
    # ch = logging.StreamHandler()

    fh.setFormatter(formatter)
    # ch.setFormatter(formatter)
    # fh.setLevel(logging.INFO)
    # ch.setLevel(logging.INFO)
    # logging.getLogger().addHandler(ch)
    logging.getLogger().addHandler(fh)
    logging.getLogger().setLevel(logging.INFO)

    return logging

# prepare logging. 

def init_logging(logfile):
    formatter = logging.Formatter('%(asctime)s [%(levelname)s] %(module)s: %(message)s',
                                  datefmt='%m/%d/%Y %H:%M:%S'   )
    fh = logging.FileHandler(logfile)
    # ch = logging.StreamHandler()

    fh.setFormatter(formatter)
    # ch.setFormatter(formatter)
    # fh.setLevel(logging.INFO)
    # ch.setLevel(logging.INFO)
    # logging.getLogger().addHandler(ch)
    logging.getLogger().addHandler(fh)
    logging.getLogger().setLevel(logging.INFO)

    return logging


# prepare logging. 

def init_logging(logfile):
    formatter = logging.Formatter('%(asctime)s [%(levelname)s] %(module)s: %(message)s',
                                  datefmt='%m/%d/%Y %H:%M:%S'   )
    fh = logging.FileHandler(logfile)
    # ch = logging.StreamHandler()

    fh.setFormatter(formatter)
    # ch.setFormatter(formatter)
    # fh.setLevel(logging.INFO)
    # ch.setLevel(logging.INFO)
    # logging.getLogger().addHandler(ch)
    logging.getLogger().addHandler(fh)
    logging.getLogger().setLevel(logging.INFO)

    return logging

# prepare logging. 

def add_stderr_logger(level=logging.DEBUG):
    """
    Helper for quickly adding a StreamHandler to the logger. Useful for
    debugging.

    Returns the handler after adding it.
    """
    # This method needs to be in this __init__.py to get the __name__ correct
    # even if urllib3 is vendored within another package.
    logger = logging.getLogger(__name__)
    handler = logging.StreamHandler()
    handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s %(message)s'))
    logger.addHandler(handler)
    logger.setLevel(level)
    logger.debug('Added a stderr logging handler to logger: %s', __name__)
    return handler

# ... Clean up. 

def add_stderr_logger(level=logging.DEBUG):
    """
    Helper for quickly adding a StreamHandler to the logger. Useful for
    debugging.

    Returns the handler after adding it.
    """
    # This method needs to be in this __init__.py to get the __name__ correct
    # even if urllib3 is vendored within another package.
    logger = logging.getLogger(__name__)
    handler = logging.StreamHandler()
    handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s %(message)s'))
    logger.addHandler(handler)
    logger.setLevel(level)
    logger.debug('Added a stderr logging handler to logger: %s', __name__)
    return handler

# ... Clean up.