Updated for raise an exception

slpkg/blacklist.py

@@ -17,5 +17,9 @@ class Blacklist(Configs):
         """ Reads the blacklist file. """
         file = Path(self.etc_path, 'blacklist.toml')
         if file.is_file():
+            try:
                 with open(file, 'rb') as black:
                     return tomli.load(black)['blacklist']['packages']
+            except tomli.TOMLDecodeError as error:
+                raise SystemExit(f"\nValueError: {error}: in the configuration file "
+                                 "'/etc/slpkg/blacklist.toml'\n")