Update testdata.py

testdata.py

@@ -113,7 +113,7 @@ class TestData(datasets.GeneratorBasedBuilder):
             plates = []
 
             annotation = defaultdict(list)
-            with open(gt_pah, 'r') as f:
+            with open(gt_path, 'r') as f:
                 line = f.readline().strip()
                 while line:
                     assert re.match(r'^\d( [\d\.]+){4,5}$', line), 'Incorrect line: %s' % line