Update driveapi/drive.py

driveapi/drive.py

@@ -50,6 +50,10 @@ def download_file(file_id):
 
 # Function to process a PDF file
 def process_pdf(file_stream):
+    if file_stream is None:
+        print("Empty File stream!!!")
+        return ""
+
     pdf_reader = PyPDF2.PdfReader(file_stream)
     text = ""
     for page_num in range(len(pdf_reader.pages)):