Merge pull request #330 from MichaelClifford/pdf

set summarizer write to tempfile

recipes/natural_language_processing/summarizer/app/requirements.txt

@@ -1,3 +1,4 @@
 langchain
 langchain_openai
-streamlit
+streamlit
+pypdf

recipes/natural_language_processing/summarizer/app/summarizer.py

@@ -4,6 +4,7 @@
 from langchain_community.callbacks import StreamlitCallbackHandler
 from langchain_community.document_loaders import PyPDFLoader
 import streamlit as st
+import tempfile
 import requests
 import time
 import os
@@ -49,12 +50,12 @@ def read_file(file):
     file_type = file.type
 
     if file_type == "application/pdf":
-        with open(file.name, "wb") as f:
+        temp = tempfile.NamedTemporaryFile()
+        with open(temp.name, "wb") as f:
             f.write(file.getvalue())
-        loader = PyPDFLoader(file.name)
+            loader = PyPDFLoader(temp.name)
         pages = loader.load()
         text = "".join([p.page_content for p in pages]) 
-        os.remove(file.name) 
 
     if file_type == "text/plain":
         text = file.read().decode()