在IDE中不丢失焦点的PyCharm日志

我找到了解决办法。。。

运行/调试配置 ,选择您的配置并转到 日志 将消息打印到标准错误流时显示控制台

_log = logging.getLogger(__name__)
_log.setLevel(logging.DEBUG)

将始终转到std.err。

因为它在官方文档中不知何故丢失了,这里是默认StreamHandler的原始实现:

class StreamHandler(Handler):
"""
A handler class which writes logging records, appropriately formatted,
to a stream. Note that this class does not close the stream, as
sys.stdout or sys.stderr may be used.
"""

terminator = '\n'

def __init__(self, stream=None):
    """
    Initialize the handler.

    If stream is not specified, sys.stderr is used.
    """
    Handler.__init__(self)
    if stream is None:
        stream = sys.stderr
    self.stream = stream