YOLOv8-16bit/ultralytics/yolo/utils/loggers/__init__.py

import logging
import os
import platform

from .base import default_callbacks

VERBOSE = str(os.getenv('YOLOv5_VERBOSE', True)).lower() == 'true'  # global verbose mode


# console logging utils
def emojis(str=''):
    # Return platform-dependent emoji-safe version of string
    return str.encode().decode('ascii', 'ignore') if platform.system() == 'Windows' else str


def colorstr(*input):
    # Colors a string https://en.wikipedia.org/wiki/ANSI_escape_code, i.e.  colorstr('blue', 'hello world')
    *args, string = input if len(input) > 1 else ("blue", "bold", input[0])  # color arguments, string
    colors = {
        "black": "\033[30m",  # basic colors
        "red": "\033[31m",
        "green": "\033[32m",
        "yellow": "\033[33m",
        "blue": "\033[34m",
        "magenta": "\033[35m",
        "cyan": "\033[36m",
        "white": "\033[37m",
        "bright_black": "\033[90m",  # bright colors
        "bright_red": "\033[91m",
        "bright_green": "\033[92m",
        "bright_yellow": "\033[93m",
        "bright_blue": "\033[94m",
        "bright_magenta": "\033[95m",
        "bright_cyan": "\033[96m",
        "bright_white": "\033[97m",
        "end": "\033[0m",  # misc
        "bold": "\033[1m",
        "underline": "\033[4m",}
    return "".join(colors[x] for x in args) + f"{string}" + colors["end"]


def set_logging(name=None, verbose=VERBOSE):
    # Sets level and returns logger
    is_kaggle = os.environ.get("PWD") == "/kaggle/working" and os.environ.get(
        "KAGGLE_URL_BASE") == "https://www.kaggle.com"
    is_colab = "COLAB_GPU" in os.environ
    if is_colab or is_kaggle:
        for h in logging.root.handlers:
            logging.root.removeHandler(h)  # remove all handlers associated with the root logger object
    rank = int(os.getenv("RANK", -1))  # rank in world for Multi-GPU trainings
    level = logging.INFO if verbose and rank in {-1, 0} else logging.ERROR
    log = logging.getLogger(name)
    log.setLevel(level)
    handler = logging.StreamHandler()
    handler.setFormatter(logging.Formatter("%(message)s"))
    handler.setLevel(level)
    log.addHandler(handler)