Read csv file and get the label for each image id

NIH-Chest-X-ray-dataset.py

@@ -143,15 +143,20 @@ class XChest(datasets.GeneratorBasedBuilder):
 		]
 
 	def _generate_examples(self, files):
+		# Read csv with image labels
+		label_csv = read_csv(_URLS['labels'])
 		for i, path in enumerate(files):
 		    file_name = os.path.basename(path)
+		    # Get image id to filter the respective row of the csv 	
+		    image_id = file_name.split('/')[-1]
 		    if file_name.endswith(".png"):
 		        yield i, {
 			    "image_file_path": path,
 			    "image": path,
 			    #"labels": ["Mass", "Hernia"]
 			    #"labels": [5, 14]
-			    "labels": "Mass"
+			    #"labels": "Mass"
+			    "labels": label_csv[label_csv['Image Index'] == image_id, 'Finding labels'].str.split('|')[0]
 			    #"multi-labels": list(map(int, [_LABEL2IDX[x] for x in ["Mass", "Hernia"]))
 			}