我们从Python开源项目中，提取了以下24个代码示例，用于说明如何使用tornado.options.options.log_file_num_backups()。
def enable_pretty_logging(): """Turns on formatted logging output as configured.""" if (options.log_to_stderr or (options.log_to_stderr is None and not options.log_file_prefix)): # Set up color if we are in a tty and curses is installed color = False if curses and sys.stderr.isatty(): try: curses.setupterm() if curses.tigetnum("colors") > 0: color = True except: pass channel = logging.StreamHandler() channel.setFormatter(_LogFormatter(color=color)) logging.getLogger().addHandler(channel) if options.log_file_prefix: channel = logging.handlers.RotatingFileHandler( filename=options.log_file_prefix, maxBytes=options.log_file_max_size, backupCount=options.log_file_num_backups) channel.setFormatter(_LogFormatter(color=False)) logging.getLogger().addHandler(channel)
def define_logging_options(options=None): if options is None: # late import to prevent cycle from tornado.options import options options.define("logging", default="info", help=("Set the Python log level. If 'none', tornado won't touch the " "logging configuration."), metavar="debug|info|warning|error|none") options.define("log_to_stderr", type=bool, default=None, help=("Send log output to stderr (colorized if possible). " "By default use stderr if --log_file_prefix is not set and " "no other logging is configured.")) options.define("log_file_prefix", type=str, default=None, metavar="PATH", help=("Path prefix for log files. " "Note that if you are running multiple tornado processes, " "log_file_prefix must be different for each of them (e.g. " "include the port number)")) options.define("log_file_max_size", type=int, default=100 * 1000 * 1000, help="max size of log files before rollover") options.define("log_file_num_backups", type=int, default=10, help="number of log files to keep") options.add_parse_callback(enable_pretty_logging)
def enable_pretty_logging(options=None, logger=None): if options is None: from tornado.options import options if options.logging is None or options.logging.lower() == 'none': return if logger is None: logger = logging.getLogger() logger.setLevel(getattr(logging, options.logging.upper())) if options.log_file_prefix: rotate_mode = options.log_rotate_mode if rotate_mode == 'size': channel = logging.handlers.RotatingFileHandler( filename=options.log_file_prefix, maxBytes=options.log_file_max_size, backupCount=options.log_file_num_backups) elif rotate_mode == 'time': channel = logging.handlers.TimedRotatingFileHandler( filename=options.log_file_prefix, when=options.log_rotate_when, interval=options.log_rotate_interval, backupCount=options.log_file_num_backups) else: error_message = 'The value of log_rotate_mode option should be ' + \ '"size" or "time", not "%s".' % rotate_mode raise ValueError(error_message) channel.setFormatter(LogFormatter(color=False)) logger.addHandler(channel) if (options.log_to_stderr or (options.log_to_stderr is None and not logger.handlers)): # Set up color if we are in a tty and curses is installed channel = logging.StreamHandler() channel.setFormatter(LogFormatter()) logger.addHandler(channel)
def enable_pretty_logging(options=None, logger=None): """Turns on formatted logging output as configured. This is called automatically by `tornado.options.parse_command_line` and `tornado.options.parse_config_file`. """ if options is None: from tornado.options import options if options.logging is None or options.logging.lower() == 'none': return if logger is None: logger = logging.getLogger() logger.setLevel(getattr(logging, options.logging.upper())) if options.log_file_prefix: rotate_mode = options.log_rotate_mode if rotate_mode == 'size': channel = logging.handlers.RotatingFileHandler( filename=options.log_file_prefix, maxBytes=options.log_file_max_size, backupCount=options.log_file_num_backups) elif rotate_mode == 'time': channel = logging.handlers.TimedRotatingFileHandler( filename=options.log_file_prefix, when=options.log_rotate_when, interval=options.log_rotate_interval, backupCount=options.log_file_num_backups) else: error_message = 'The value of log_rotate_mode option should be ' +\ '"size" or "time", not "%s".' % rotate_mode raise ValueError(error_message) channel.setFormatter(LogFormatter(color=False)) logger.addHandler(channel) if (options.log_to_stderr or (options.log_to_stderr is None and not logger.handlers)): # Set up color if we are in a tty and curses is installed channel = logging.StreamHandler() channel.setFormatter(LogFormatter()) logger.addHandler(channel)
def define_logging_options(options=None): """Add logging-related flags to ``options``. These options are present automatically on the default options instance; this method is only necessary if you have created your own `.OptionParser`. .. versionadded:: 4.2 This function existed in prior versions but was broken and undocumented until 4.2. """ if options is None: # late import to prevent cycle from tornado.options import options options.define("logging", default="info", help=("Set the Python log level. If 'none', tornado won't touch the " "logging configuration."), metavar="debug|info|warning|error|none") options.define("log_to_stderr", type=bool, default=None, help=("Send log output to stderr (colorized if possible). " "By default use stderr if --log_file_prefix is not set and " "no other logging is configured.")) options.define("log_file_prefix", type=str, default=None, metavar="PATH", help=("Path prefix for log files. " "Note that if you are running multiple tornado processes, " "log_file_prefix must be different for each of them (e.g. " "include the port number)")) options.define("log_file_max_size", type=int, default=100 * 1000 * 1000, help="max size of log files before rollover") options.define("log_file_num_backups", type=int, default=10, help="number of log files to keep") options.define("log_rotate_when", type=str, default='midnight', help=("specify the type of TimedRotatingFileHandler interval " "other options:('S', 'M', 'H', 'D', 'W0'-'W6')")) options.define("log_rotate_interval", type=int, default=1, help="The interval value of timed rotating") options.define("log_rotate_mode", type=str, default='size', help="The mode of rotating files(time or size)") options.add_parse_callback(lambda: enable_pretty_logging(options))
def enable_pretty_logging(): """Turns on formatted logging output as configured. This is called automatically by `parse_command_line`. """ root_logger = logging.getLogger() if options.log_file_prefix: channel = logging.handlers.RotatingFileHandler( filename=options.log_file_prefix, maxBytes=options.log_file_max_size, backupCount=options.log_file_num_backups) channel.setFormatter(_LogFormatter(color=False)) root_logger.addHandler(channel) if (options.log_to_stderr or (options.log_to_stderr is None and not root_logger.handlers)): # Set up color if we are in a tty and curses is installed color = False if curses and sys.stderr.isatty(): try: curses.setupterm() if curses.tigetnum("colors") > 0: color = True except Exception: pass channel = logging.StreamHandler() channel.setFormatter(_LogFormatter(color=color)) root_logger.addHandler(channel)
def enable_pretty_logging(options=None, logger=None): """Turns on formatted logging output as configured. This is called automaticaly by `tornado.options.parse_command_line` and `tornado.options.parse_config_file`. """ if options is None: from tornado.options import options if options.logging == 'none': return if logger is None: logger = logging.getLogger() logger.setLevel(getattr(logging, options.logging.upper())) if options.log_file_prefix: channel = logging.handlers.RotatingFileHandler( filename=options.log_file_prefix, maxBytes=options.log_file_max_size, backupCount=options.log_file_num_backups) channel.setFormatter(LogFormatter(color=False)) logger.addHandler(channel) if (options.log_to_stderr or (options.log_to_stderr is None and not logger.handlers)): # Set up color if we are in a tty and curses is installed channel = logging.StreamHandler() channel.setFormatter(LogFormatter()) logger.addHandler(channel)
def enable_pretty_logging(options=None, logger=None): """Turns on formatted logging output as configured. This is called automatically by `tornado.options.parse_command_line` and `tornado.options.parse_config_file`. """ if options is None: from tornado.options import options if options.logging is None or options.logging.lower() == 'none': return if logger is None: logger = logging.getLogger() logger.setLevel(getattr(logging, options.logging.upper())) if options.log_file_prefix: channel = logging.handlers.RotatingFileHandler( filename=options.log_file_prefix, maxBytes=options.log_file_max_size, backupCount=options.log_file_num_backups) channel.setFormatter(LogFormatter(color=False)) logger.addHandler(channel) if (options.log_to_stderr or (options.log_to_stderr is None and not logger.handlers)): # Set up color if we are in a tty and curses is installed channel = logging.StreamHandler() channel.setFormatter(LogFormatter()) logger.addHandler(channel)
def define_logging_options(options=None): """Add logging-related flags to ``options``. These options are present automatically on the default options instance; this method is only necessary if you have created your own `.OptionParser`. .. versionadded:: 4.2 This function existed in prior versions but was broken and undocumented until 4.2. """ if options is None: # late import to prevent cycle from tornado.options import options options.define("logging", default="info", help=("Set the Python log level. If 'none', tornado won't touch the " "logging configuration."), metavar="debug|info|warning|error|none") options.define("log_to_stderr", type=bool, default=None, help=("Send log output to stderr (colorized if possible). " "By default use stderr if --log_file_prefix is not set and " "no other logging is configured.")) options.define("log_file_prefix", type=str, default=None, metavar="PATH", help=("Path prefix for log files. " "Note that if you are running multiple tornado processes, " "log_file_prefix must be different for each of them (e.g. " "include the port number)")) options.define("log_file_max_size", type=int, default=100 * 1000 * 1000, help="max size of log files before rollover") options.define("log_file_num_backups", type=int, default=10, help="number of log files to keep") options.add_parse_callback(lambda: enable_pretty_logging(options))
