Update app.py

app.py

@@ -11,6 +11,7 @@ subprocess.check_call([sys.executable, "-m", "pip", "install", "entmax"])
 from tortoise_tts.api import TextToSpeech
 from tortoise_tts.utils.audio import load_audio, get_voices
 import torch 
+import gradio
 
 device = "cuda" if torch.cuda.is_available() else "cpu"