fix: warn and fix when topk parameter setting is wrong

ppcls/metric/metrics.py

@@ -40,7 +40,7 @@ class TopkAcc(AvgMetrics):
 
     def reset(self):
         self.avg_meters = {
-            "top{}".format(k): AverageMeter("top{}".format(k))
+            f"top{k}": AverageMeter(f"top{k}")
             for k in self.topk
         }
 
@@ -55,11 +55,14 @@ class TopkAcc(AvgMetrics):
             if output_dims < k:
                 msg = f"The output dims({output_dims}) is less than k({k}), and the argument {k} of Topk has been removed."
                 logger.warning(msg)
-                self.topk.pop(idx)
+                self.avg_meters.pop(f"top{k}")
                 continue
-            metric_dict["top{}".format(k)] = paddle.metric.accuracy(
-                x, label, k=k)
-            self.avg_meters["top{}".format(k)].update(metric_dict["top{}".format(k)], x.shape[0])
+            metric_dict[f"top{k}"] = paddle.metric.accuracy(x, label, k=k)
+            self.avg_meters[f"top{k}"].update(metric_dict[f"top{k}"],
+                                              x.shape[0])
+
+        self.topk = filter(lambda k: k <= output_dims, self.topk)
+
         return metric_dict