Update app.py

app.py

@@ -9,6 +9,7 @@ from bs4 import BeautifulSoup
 import arxiv
 from PyPDF2 import PdfReader
 from xml.etree import ElementTree
+import io
 # Below is an example of a tool that does nothing. Amaze us with your creativity !
 
 
@@ -75,18 +76,16 @@ def get_paper_content(link:str)->str:
         pdf_url = paper.entry_id.replace("abs", "pdf") + ".pdf"
         response = requests.get(pdf_url)
         response.raise_for_status()
-        pdf_path = "temp_paper.pdf"
-        with open(pdf_path, "wb") as file:
-            file.write(response.content)
+        pdf_buffer = io.BytesIO(response.content)
 
-        
+        # Extract text from the first four pages
         content = ""
-        reader = PdfReader(pdf_path)
-        pages = reader.pages[:4] 
+        reader = PdfReader(pdf_buffer)
+        pages = reader.pages[:4]
         for page in pages:
-            content += page.extract_text()
-        
-        return content
+            content += page.extract_text() or ""  
+
+        return content.strip()
     
     except Exception as e:
         return f"Error reading paper: {str(e)}"