Update app.py

app.py

@@ -70,7 +70,7 @@ def modify_file(file_path):
     """
     Modify specific lines in a file.
     
-    Replace lines 107 and 108 with `raise ImportError`.
+    Replace lines 107 and 108 with a valid `raise ImportError` statement.
     """
     try:
         # Read the file contents
@@ -78,7 +78,7 @@ def modify_file(file_path):
             lines = file.readlines()
 
         # Modify the specified lines
-        lines[106] = "    raise ImportError("Custom import error message")\n"  # Line 107 (index starts at 0)
+        lines[106] = "    raise ImportError(\"Custom import error message\")\n"  # Line 107 (index starts at 0)
         lines[107] = ""  # Line 108, replace with an empty line or remove it
 
         # Write the modified lines back to the file