Update app.py

app.py

@@ -115,7 +115,8 @@ class WaifuDiffusionInterrogator:
         tags = dict(full_tags[full_tags['category'] != 9][['name', 'confidence']].values)
         self.cache[imgByteArr] = (ratings, tags)
         if len(self.cache) > 25:
-            self.cache.popitem(last=False)
+            k = next(iter(self.cache))
+            v = self.cache.pop(k)
 
         return ratings, tags