Update app.py

app.py

@@ -1,18 +1,22 @@
 import gradio as gr
 from transformers import pipeline
 import PyPDF2
+import os
 
 # 📌 Load syllabus from PDF
 def read_pdf(file_path):
+    if not os.path.exists(file_path):
+        return "Error: Syllabus file not found!"
+    
     try:
         with open(file_path, "rb") as file:
             reader = PyPDF2.PdfReader(file)
             text = "\n".join([page.extract_text() for page in reader.pages if page.extract_text()])
-        return text
+        return text if text.strip() else "Error: Could not extract text from syllabus."
     except Exception as e:
         return f"Error loading syllabus: {str(e)}"
 
-syllabus_text = read_pdf("syllabus.pdf")
+syllabus_text = read_pdf("Syllabus.pdf")  # 🛑 Ensure the filename matches exactly
 
 # 📌 Load AI Model
 chatbot = pipeline("text-generation", model="facebook/blenderbot-400M-distill")