Update app.py

app.py

@@ -46,7 +46,7 @@ def display_pdf(file):
     with open(file, "rb") as f:
         base64_pdf = base64.b64encode(f.read()).decode('utf-8')
 
-    pdf_display = f'<iframe src="data:application/pdf;base64,{base64_pdf}" width="100%" height="600" type="application/pdf"></iframe>'
+    pdf_display = F'<iframe src="data:application/pdf;base64,{base64_pdf}" width="100%" height="600" type="application/pdf"></iframe>'
     st.markdown(pdf_display, unsafe_allow_html=True)
 
 # Streamlit code