build_logs.py 文件源码

def exit_cleanup():
    try:
        fileobj = sys.stdout.fileobj
    except AttributeError:
        pass
    else:
        sys.stdout.is_valid = False
        sys.stderr.is_valid = False
        fileobj.close()
        filename = sys.stdout.filename

        Logs.info('Output logged to %r' % filename)

        # then copy the log file to "latest.log" if possible
        up = os.path.dirname(os.path.abspath(filename))
        try:
            shutil.copy(filename, os.path.join(up, 'latest.log'))
        except OSError:
            # this may fail on windows due to processes spawned
            # 
            pass