Update app.py

app.py

@@ -25,12 +25,12 @@ pipe = pipe.to(device)
 @spaces.GPU
 def run(prompt, negative_prompt=None, guidance_scale=7.0, pag_scale=3.0, pag_layers=["mid"], randomize_seed=True, seed=42, progress=gr.Progress(track_tqdm=True)):
     prompt = prompt.strip()
-    negative_prompt = negative_prompt.strip()
+    negative_prompt = negative_prompt.strip() if negative_prompt and negative_prompt.strip() else None
+    print("negative prompt", negative_prompt)
     if(randomize_seed):
         seed = random.randint(0, sys.maxsize)
-    if(negative_prompt == ""):
-        negative_prompt = None
-    if(prompt == "" and negative_prompt == ""):
+    
+    if not prompt and not negative_prompt:
         guidance_scale = 0.0
         
     generator = torch.Generator(device="cuda").manual_seed(seed)