Update app.py

app.py

@@ -1,6 +1,14 @@
 import gradio as gr
 import os
-os.system('pip install transformers torch')
+
+# Check if transformers and torch are installed
+try:
+    import transformers
+    import torch
+except ImportError:
+    # Install transformers and torch if not installed
+    os.system('pip install transformers torch')
+
 from transformers import GPT2LMHeadModel, GPT2Tokenizer
 
 # Load the pre-trained model and tokenizer