Minimal syntax fix

Author: botcs

Diff for: dl_lib/evaluation/sem_seg_evaluation.py

@@ -12,7 +12,7 @@
 import cv2
 from dl_lib.data import DatasetCatalog, MetadataCatalog
 from dl_lib.utils.comm import all_gather, is_main_process, synchronize
-from datasets.cityscapes.cityscapesscripts.helpers.labels import trainId2label
+from cityscapesscripts.helpers.labels import trainId2label
 from .evaluator import DatasetEvaluator
 
 
@@ -160,6 +160,9 @@ def evaluate(self):
 
         # add flops calculation
         if len(self._real_flops) > 0 and len(self._expt_flops) > 0:
+            self._real_flops = [x.item() for x in self._real_flops]
+            self._expt_flops = [x.item() for x in self._expt_flops]
+
             res["mean_real_flops"] = (sum(self._real_flops) / len(self._real_flops)) / 1e3
             res["max_real_flops"] = max(self._real_flops) / 1e3
             res["min_real_flops"] = min(self._real_flops) / 1e3

Diff for: dl_lib/modeling/meta_arch/dynamic4seg.py

@@ -169,8 +169,13 @@ def forward(self, features, targets=None):
         for _index in range(len(self.in_features)):
             out_index = len(self.in_features) - _index - 1
             out_feat = features[self.in_features[out_index]]
-            if out_index <= 2:
+
+            if isinstance(out_feat, float):
+                continue
+
+            if out_index <= 2 and pred is not None:
                 out_feat = pred + out_feat
+
             pred = self.layer_decoder_list[out_index](out_feat)
             if out_index > 0:
                 pred = F.interpolate(input=pred,