Update app.py

app.py

@@ -40,7 +40,7 @@ MAX_INPUT_TEXT_LEN = int(os.environ.get("MAX_INPUT_TEXT_LEN", default=500))
 
 # Dynamically read model files, exclude 'speakers.pth'
 # model_files = [f for f in os.listdir(os.getcwd()) if f.endswith('.pth') and f != 'speakers.pth']
-model_files = [f for f in os.listdir('./checkpoints') if f.endswith('.pth')]
+model_files = [f for f in os.listdir(os.path.join(os.getcwd(), 'checkpoints')) if f.endswith('.pth')]
 # model_files.sort(key=lambda x: os.path.getmtime(os.path.join(os.getcwd(), x)), reverse=True)
 
 speakers_path = "speakers.pth"