Update app.py

app.py

@@ -19,7 +19,7 @@ os.system("pip install gradio_image_prompter==0.1.0")
 os.system("pip install pydantic==2.10.6")
 
 import subprocess
-os.system("pip install flash-attn==2.7.4.post1 --no-build-isolation")
+subprocess.run('pip install flash-attn==2.7.4.post1 --no-build-isolation', env={'FLASH_ATTENTION_SKIP_CUDA_BUILD': "TRUE"}, shell=True)
 import sys
 import threading