fix face_eval (#18)

tools/eval.py

@@ -107,6 +107,9 @@ def main():
     if 'weights' in cfg:
         checkpoint.load_params(exe, eval_prog, cfg.weights)
 
+    if cfg.metric == "WIDERFACE":
+        raise ValueError("metric type {} does not support in tools/eval.py, "
+                         "please use tools/face_eval.py".format(cfg.metric))
     assert cfg.metric in ['COCO', 'VOC'], \
             "unknown metric type {}".format(cfg.metric)
     extra_keys = []

tools/face_eval.py

@@ -235,7 +235,7 @@ def main():
     eval_prog = fluid.Program()
     with fluid.program_guard(eval_prog, startup_prog):
         with fluid.unique_name.guard():
-            _, feed_vars = create_feed(eval_feed, use_pyreader=False)
+            _, feed_vars = create_feed(eval_feed, iterable=True)
             fetches = model.eval(feed_vars)
 
     eval_prog = eval_prog.clone(True)