added the fileuplaod fix

app.py

@@ -1,25 +1,31 @@
+import json
+import logging
 import os
+import shutil
 import sys
-import logging
-from pathlib import Path
+import uuid
 from json import JSONDecodeError
+from pathlib import Path
+
 import pandas as pd
+import pinecone
 import streamlit as st
 from annotated_text import annotation
-from markdown import markdown
-import json
 from haystack import Document
-import pandas as pd
 from haystack.document_stores import PineconeDocumentStore
-from haystack.nodes import EmbeddingRetriever, FARMReader
-from haystack.pipelines import ExtractiveQAPipeline
-import shutil
-import uuid
-from pathlib import Path
-from haystack.pipelines import Pipeline
-from haystack.nodes import TextConverter, PreProcessor, FileTypeClassifier, PDFToTextConverter, DocxToTextConverter
+from haystack.nodes import (
+    DocxToTextConverter,
+    EmbeddingRetriever,
+    FARMReader,
+    FileTypeClassifier,
+    PDFToTextConverter,
+    PreProcessor,
+    TextConverter,
+)
+from haystack.pipelines import ExtractiveQAPipeline, Pipeline
+from markdown import markdown
 from sentence_transformers import SentenceTransformer
-import pinecone
+
 index_name = "qa_demo"
 
 
@@ -176,8 +182,8 @@ for data_file in data_files:
     # Upload file
     if data_file:
         file_path = Path(FILE_UPLOAD_PATH) / f"{uuid.uuid4().hex}_{data_file.name}"
-        with file_path.open("wb") as buffer:
-            shutil.copyfileobj(data_file.file, buffer)
+        with open(file_path, "wb") as f:
+            f.write(data_file.getbuffer())
         ALL_FILES.append(file_path)
         st.sidebar.write(str(data_file.name) + "    ✅ ")
         META_DATA.append({"filename":data_file.name})