Logging Logger for Logs, the best in the world!, Colored, SysLog, Log File, CrossPlatform, Optional Arguments, and more...

logging_logger.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-


import sys, os
import logging as log
from copy import copy
from tempfile import gettempdir


def make_logger(name=str(os.getpid())):
    """Build and return a Logging Logger."""
    log_file = os.path.join(gettempdir(), str(name).lower().strip() + ".log")
    log.basicConfig(level=-1, filemode="w", filename=log_file,
                    format="%(levelname)s:%(asctime)s %(message)s %(lineno)s")
    if not sys.platform.startswith("win") and sys.stderr.isatty():
        def add_color_emit_ansi(fn):
            """Add methods we need to the class."""
            def new(*args):
                """Method overload."""
                if len(args) == 2:
                    new_args = (args[0], copy(args[1]))
                else:
                    new_args = (args[0], copy(args[1]), args[2:])
                if hasattr(args[0], 'baseFilename'):
                    return fn(*args)
                levelno = new_args[1].levelno
                if levelno >= 50:
                    color = '\x1b[31;5;7m\n '  # blinking red with black
                elif levelno >= 40:
                    color = '\x1b[31m'  # red
                elif levelno >= 30:
                    color = '\x1b[33m'  # yellow
                elif levelno >= 20:
                    color = '\x1b[32m'  # green
                elif levelno >= 10:
                    color = '\x1b[35m'  # pink
                else:
                    color = '\x1b[0m'  # normal
                try:
                    new_args[1].msg = color + str(new_args[1].msg) + ' \x1b[0m'
                except Exception as reason:
                    print(reason)  # Do not use log here.
                return fn(*new_args)
            return new
        # all non-Windows platforms support ANSI Colors so we use them
        log.StreamHandler.emit = add_color_emit_ansi(log.StreamHandler.emit)
        a = "/dev/log" if sys.platform.startswith("lin") else "/var/run/syslog"
        try:  # try to Hook Up the SysLog Server if Any.
            handler = log.handlers.SysLogHandler(address=a)
        except:  # SysLog Server not found
            log.debug("Unix SysLog Server not found,ignored Logging to SysLog")
        else:  # SysLog Server found, log to it.
            log.addHandler(handler)
    else:
        log.debug("Colored Logs not supported on {0}.".format(sys.platform))
    log.getLogger().addHandler(log.StreamHandler(sys.stderr))
    log.debug("Logger created with Log file at: {0}.".format(log_file))
    return log


if __name__ in '__main__':
    make_logger("your_app_name_here")
    log.warning(42)
    log.error(42)
    log.critical(42)
    log.info(42)
    log.debug(42)

juan@z:~$ python3 temp.py

Unix SysLog Server not found,ignored Logging to SysLog.
Logger created with Log file at: /tmp/your_app_name_here.log.
42
42
42
42
42

juan@z:~$
juan@z:~$ python2 temp.py

Unix SysLog Server not found,ignored Logging to SysLog.
Logger created with Log file at: /tmp/your_app_name_here.log.
42
42
42
42
42

juan@z:~$