Update demo.py

demo.py

@@ -178,15 +178,16 @@ def shapeSampleDemo(style,resn):
         character = character[:1]
         print(f"Keeping only first character ({character})!")
     length=st.sidebar.number_input('length,step=100',min_value=100,max_value=1500,step=100,value=1000,key='length_shape')
-    letter_point_cloud = letter_to_point_cloud(character)
-    conditioner = conditioners.ShapeConditioner(
-        letter_point_cloud,
-        chroma.backbone_network.noise_schedule,
-        autoscale_num_residues=length,
-    ).to(device)
+    
     if st.sidebar.button("Run Code with Button",key="shape"):
+        letter_point_cloud = letter_to_point_cloud(character)
+        conditioner = conditioners.ShapeConditioner(
+            letter_point_cloud,
+            chroma.backbone_network.noise_schedule,
+            autoscale_num_residues=length,
+        ).to(device)
         shapeSample(length,conditioner,output)
-
+        
     display(output,style,resn)