Update app.py

app.py

@@ -3,17 +3,18 @@ import camelot
 import pandas as pd
 import gradio as gr
 
-# Install Ghostscript if missing
-try:
-    camelot.__version__
-except ImportError:
+def install_ghostscript():
     subprocess.run(["apt-get", "update"])
     subprocess.run(["apt-get", "install", "-y", "ghostscript"])
 
 def extract_tables(pdf_file):
-    tables = camelot.read_pdf(pdf_file.name, pages="all")
-    df = pd.concat([table.df for table in tables], ignore_index=True)
-    return df
+    try:
+        tables = camelot.read_pdf(pdf_file.name, pages="all")
+        df = pd.concat([table.df for table in tables], ignore_index=True)
+        return df
+    except OSError:
+        install_ghostscript()
+        return "Ghostscript installed. Please retry."
 
 demo = gr.Interface(
     fn=extract_tables,