Update metrics.py

ppcls/metric/metrics.py

@@ -69,7 +69,7 @@ class mINP(nn.Layer):
 class Recallk(nn.Layer):
     def __init__(self, topk=(1, 5)):
         super().__init__()
-        assert isinstance(topk, (int, list))
+        assert isinstance(topk, (int, list, tuple))
         if isinstance(topk, int):
             topk = [topk]
         self.topk = topk
@@ -97,6 +97,10 @@ class RetriMetric(nn.Layer):
                                    gallery_img_id, self.max_rank)
         if "Recallk" in self.config.keys():
             topk = self.config['Recallk']['topk']
+            assert isinstance(topk, (int, list, tuple))
+            if isinstance(topk, int):
+                topk = [topk]
+            self.topk = topk
             for k in topk:
                 metric_dict["recall{}".format(k)] = all_cmc[k - 1]
         if "mAP" in self.config.keys():