Update app.py

app.py

@@ -3,7 +3,12 @@ from diffusers import StableDiffusionPipeline
 import torch
 
 model_id = "stabilityai/stable-diffusion-2-1"
-pipe = StableDiffusionPipeline.from_pretrained(model_id, torch_dtype=torch.float16).to("cuda")
+
+device = "cuda" if torch.cuda.is_available() else "cpu"
+dtype = torch.float16 if device == "cuda" else torch.float32
+
+pipe = StableDiffusionPipeline.from_pretrained(model_id, torch_dtype=dtype)
+pipe = pipe.to(device)
 
 def generate(prompt):
     image = pipe(prompt).images[0]
@@ -11,4 +16,5 @@ def generate(prompt):
 
 demo = gr.Interface(fn=generate, inputs="text", outputs="image")
 
-demo.launch()
+if __name__ == "__main__":
+    demo.launch()