Update app.py

app.py

@@ -1,5 +1,5 @@
 import os
-os.system('pip install python-dotenv llama-index llama-index-llms-ollama llama-index-packs-ragatouille-retriever llama-index-packs-code-hierarchy llama-index-vector-stores-qdrant llama-index-embeddings-fastembed langchain llama-index-embeddings-langchain -U langchain-community sentence-transformers unstructured gradio')
+os.system('pip install python-dotenv llama-index llama-index-llms-ollama llama-index-packs-ragatouille-retriever llama-index-packs-code-hierarchy llama-index-vector-stores-qdrant llama-index-embeddings-fastembed langchain llama-index-embeddings-langchain -U langchain-community sentence-transformers unstructured gradio ipython')
 
 os.environ["HF_HOME"] = "weights"
 os.environ["TORCH_HOME"] = "weights"