在python 2.6中运行这个程序！

错误：

No handlers could be found for logger "__main__"

码：

import logging
import subprocess as sp

logger = logging.getLogger(__name__)

def runpig(filename):
    # does not use logger
    ....
    ....
    return

def main():
    try:
        runpig(filename)
    except sp.CalledProcessError as ex:
        logger.error(ex.message)
    except:
        logger.info("Error occured")

if __name__ == "__main__":
    main()

解决方法

if __name__ == "__main__":
    logging.info("Begin")
    main()

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