我找到了一些应该可以工作的代码,但是没有。。我做错了什么/遗漏了什么?

资料来源: How to find table like structure in image

def find_table_in_boxes(boxes, cell_threshold=10, min_columns=2):
    for box in boxes:
        (x, y, w, h) = box
        print(box)
        col_key = x // cell_threshold

if __name__ == '__main__':
    text_boxes = [
        {
            'x': 123,
            'y': 512,
            'w': 100,
            'h': 150
        },
        {
            'x': 500,
            'y': 512,
            'w': 100,
            'h': 150
        }
    ]
    cells = find_table_in_boxes(text_boxes)

错误

# python test.py
{'x': 123, 'w': 100, 'y': 512, 'h': 150}
Traceback (most recent call last):
  File "test.py", line 22, in <module>
    cells = find_table_in_boxes(text_boxes)
  File "test.py", line 5, in find_table_in_boxes
    col_key = x // cell_threshold
TypeError: unsupported operand type(s) for //: 'str' and 'int'