code changed

app.py

@@ -1,17 +1,3 @@
-
-!pip install -qq langchain wget llama-index cohere llama-cpp-python
-
-import wget 
-
-def bar_custom(current, total, width=80):
-    print("Downloading %d%% [%d / %d] bytes" % (current / total * 100, current, total))
-
-model_url = "https://huggingface.co/TheBloke/Llama-2-7B-Chat-GGUF/resolve/main/llama-2-7b-chat.Q2_K.gguf"
-wget.download(model_url, bar=bar_custom)
-
-!pip -q install streamlit
-
-%%writefile app.py
 import streamlit as st 
 from llama_index import (
   SimpleDirectoryReader,
@@ -81,6 +67,4 @@ def main() -> None:
         st.markdown(message.content)
 
 if __name__ == "__main__":
-  main()
- 
-!streamlit run app.py & npx localtunnel --port 8501
+  main()