python - 当未使用 Colorama 显式指定颜色时，无法以默认颜色打印日志

Question

我正在尝试使用 python 中的 colorama 和日志记录模块来获取彩色日志。如果我没有给出任何颜色，那么它应该打印默认的终端颜色，但在我的日志中，如果没有明确设置颜色，我将获得先前设置的日志的颜色。

下面是我的 setup_logging.yml 文件

import os
import yaml
import logging.config


def setup_logging(
    default_path='logging.yml', default_level=logging.INFO, env_key='LOG_CFG'):
path = os.path.join('/etc', 'module', default_path)
    value = os.getenv(env_key, None)
if value:
    path = value
if os.path.exists(path):
    with open(path, 'rt') as f:
        config = yaml.load(f.read())
    logging.config.dictConfig(config)
else:
    logging.basicConfig(level=default_level)

Logging.yml 文件

 version: 1

 disable_existing_loggers: True 


formatters:
   default:
    format:  "%(asctime)s - %(name)s - %(levelname)s - \n %(message)s"
handlers:
   console:
    class: logging.StreamHandler
    level: INFO 
    formatter: default
    stream: ext://sys.stdout

info_file_handler:
    class: logging.handlers.RotatingFileHandler
    level: INFO
    formatter: default
    filename: /var/log/jsnapy/test.log
    maxBytes: 10485760 # 10MB
    backupCount: 20
    encoding: utf8

我已经删除了日志功能的代码:

 import logging
 import colorama

class Test:

def __init__(self):
    self.logger = logging.getLogger(__name__)
    colorama.init(autoreset=True)
    setup_logging.setup_logging()

def testing(self):
    self.logger.debug(colorama.Fore.RED + "this is a debugging message")
    self.logger.info(colorama.Fore.BLUE+"this is an informational message")
    self.logger.warn(colorama.Fore.BLUE+"this is a warning message")
    self.logger.error(colorama.Fore.YELLOW +  "this is an error message")
    self.logger.critical("this is a critical message")

t = Test()
t.testing()

未明确指定颜色时如何获取日志中的默认颜色。

Answer 1

您需要使用 init(autoreset=True) 来实现此目的，如官方文档中所述:

If you find yourself repeatedly sending reset sequences to turn off color changes at the end of every print, then init(autoreset=True) will automate that:

from colorama import init
init(autoreset=True)
print(Fore.RED + 'some red text')
print('automatically back to default color again')