Update app.py

app.py

@@ -60,7 +60,7 @@ class GeneticAlgorithm:
     self.population += offspring
 
     def mutation(self):
-    for net in self.population:
+        for net in self.population:
         if random.random() < 0.1:
             weights = net.get_weights()
             new_weights = [np.array(w) + np.random.randn(*w.shape) * 0.1 for w in weights]