Description

I had an empty newline after the label in one of my yolo label files, it started broke the entire program, failing to load the dataset.

  File "C:\Users\codys\Desktop\project\labelled datasets\visualizelabel - toFile.py", line 19, in <module>
    dataset = sv.DetectionDataset.from_yolo(
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\codys\AppData\Local\Programs\Python\Python311\Lib\site-packages\supervision\dataset\core.py", line 313, in from_yolo
    classes, images, annotations = load_yolo_annotations(
                                   ^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\codys\AppData\Local\Programs\Python\Python311\Lib\site-packages\supervision\dataset\formats\yolo.py", line 161, in load_yolo_annotations
    annotation = yolo_annotations_to_detections(
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\codys\AppData\Local\Programs\Python\Python311\Lib\site-packages\supervision\dataset\formats\yolo.py", line 85, in yolo_annotations_to_detections
    class_id.append(int(values[0]))
                        ~~~~~~^^^
IndexError: list index out of range

I went to yolo.py and I added a line printing out values, and it gave me [] as causing the problem, which makes sense.
I then went and added a line printing print(lines) (because values = line.split() and for line in lines:), and I got

['1 0.35195 0.51250 0.16016 0.11112', '']
['1 0.35195 0.51250 0.16016 0.11112', '']

preceding the error message which led me to conclude that there must be an extra newline.

Adding a check to see if values is length 0, and if it is just run a continue statement solves the problem and the library simply ignores the empty line instead of throwing an error.

if(len(values)==0):
            continue

Type of change

• Bug fix (non-breaking change which fixes an issue)

How has this change been tested, please provide a testcase or example of how you tested the change?

My program now runs, and I didn't have to modify my label txts at all.

Any specific deployment considerations

This would be a rather harmless ease-of-convivence fix, as all it does is ignore empty Newlines in a yolo label file, which otherwise would crash the entire program.

This is my first pull request so sorry if it's confusing!