本文介绍了如何在Python中将stdout和stderr重定向到记录器的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有一个带RotatingFileHandler的记录器.我想将所有Stdout和Stderr重定向到记录器.怎么做?
I have a logger that has a RotatingFileHandler.I want to redirect all Stdout and Stderr to the logger.How to do so?
推荐答案
没有足够的代表发表评论，但是我想添加一些适用于我的版本，以防他人处于类似情况.
Not enough rep to comment, but I wanted to add the version of this that worked for me in case others are in a similar situation.
class LoggerWriter:
def __init__(self, level):
# self.level is really like using log.debug(message)
# at least in my case
self.level = level
def write(self, message):
# if statement reduces the amount of newlines that are
# printed to the logger
if message != '\n':
self.level(message)
def flush(self):
# create a flush method so things can be flushed when
# the system wants to. Not sure if simply 'printing'
# sys.stderr is the correct way to do it, but it seemed
# to work properly for me.
self.level(sys.stderr)
这看起来像:
log = logging.getLogger('foobar')
sys.stdout = LoggerWriter(log.debug)
sys.stderr = LoggerWriter(log.warning)
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