fix the retrain model to eager closes #78

views/py/python_model_template_expand.py

@@ -49,7 +49,7 @@ def pathToLabel(path):
     num = table.lookup(tf.strings.as_string([path]))
 
     return tf.cond(
-        tf.math.equal(num, tf.constant(-1)),
+        tf.math.equal(num, tf.constant(-2)),
         lambda: tf.zeros([depth]),
         lambda: tf.one_hot(table.lookup(tf.strings.as_string([path])) - diff, depth)[0]
     )