AttributeError的：「NoneType」對象有沒有屬性「低」

Question

我試圖運行Python文件，但我得到這個錯誤：

File "/home/hadi/Software/tensorflow/TEST_FRCN_ROOT/tools/../lib/datasets/pascal_voc.py", line 212, in _load_pascal_annotation 
    cls = self._class_to_ind[obj.find('name').text.lower().strip()] 
AttributeError: 'NoneType' object has no attribute 'lower' 

這是使錯誤的部分代碼：

%% Load object bounding boxes into a data frame. 
     for ix, obj in enumerate(objs): 
      bbox = obj.find('bndbox') 
      # Make pixel indexes 0-based 
      x1 = float(bbox.find('xmin').text) - 1 
      y1 = float(bbox.find('ymin').text) - 1 
      x2 = float(bbox.find('xmax').text) - 1 
      y2 = float(bbox.find('ymax').text) - 1 
      cls = self._class_to_ind[obj.find('name').text.lower().strip()] 
      boxes[ix, :] = [x1, y1, x2, y2] 
      gt_classes[ix] = cls 
      overlaps[ix, cls] = 1.0 
      seg_areas[ix] = (x2 - x1 + 1) * (y2 - y1 + 1) 

我可以添加到處理任何沒有這裏對象的條件？

Answer 1

是的，你可以使用這樣

for ix, obj in enumerate(objs): 
      bbox = obj.find('bndbox') 
      # Make pixel indexes 0-based 
      x1 = float(bbox.find('xmin').text) - 1 
      y1 = float(bbox.find('ymin').text) - 1 
      x2 = float(bbox.find('xmax').text) - 1 
      y2 = float(bbox.find('ymax').text) - 1 
      if obj.find('name').text != None: 
       cls = self._class_to_ind[obj.find('name').text.lower().strip()] 
       boxes[ix, :] = [x1, y1, x2, y2] 
       gt_classes[ix] = cls 
       overlaps[ix, cls] = 1.0 
       seg_areas[ix] = (x2 - x1 + 1) * (y2 - y1 + 1)