python 3.6中的语法错误

Question

为什么我为特定员工ID培训图像创建文件夹的这些语句会出现无效的语法错误？

捕获图像

if __name__ == '__main__':
    image = []
    camera = config.get_camera()

    # Create the directory for positive training images if it doesn't exist.
    if not os.path.exists(config.Subject_Dir):
       os.makedirs(config.Subject_Dir)
       foldername = os.path.join(config.Subject_Dir, Filename + '%03d' % (config.Subject_Id)

    # Create the folder for specific Employee ID training images if it doesn't exist.
    if not os.path.exists(foldername):
        os.path.makedirs(foldername)

    # Find the largest ID of existing images.
    # Start new images after this ID value.        
    files = sorted(glob.glob(os.path.join(foldername,'[0-9][0-9][0-9]' + '.pgm')))
    count = 0

Answer 1

您收到语法错误，因为在行

foldername = os.path.join(config.Subject_Dir, Filename + '%03d' % (config.Subject_Id)

你没有关闭第一个括号。只需将)添加到该行的末尾，如下所示：

foldername = os.path.join(config.Subject_Dir, Filename + '%03d' % (config.Subject_Id))