Update app.py

app.py

@@ -7,8 +7,8 @@ os.system("cd hotshotxl")
 #os.system("mkdir -p output/DeepFashion/ckpt/pretrained")
 os.system("git clone https://github.com/hotshotco/Hotshot-XL.git")
 os.system("cd Hotshot-XL")
-os.system("pip install -r requirements.txt")
 sys.path.append("Hotshot-XL")
+os.system("pip install -r requirements.txt")
 import inference as inf
 def infer(inp):
     output = inf("a cat running through a field")