Fix #2091151 [MDE: UnboundLocalError in Invalid ISBN dialog](https://bugs.launchpad.net/calibre/+bug/2091151)

2026-06-06 14:05:21 -04:00 · 2024-12-06 15:55:12 +05:30
parent a8ac58dd0e
commit 8c02414d84
1 changed files with 1 additions and 1 deletions
@@ -1854,7 +1854,7 @@ class ISBNDialog(QDialog):  # {{{
        isbn = str(txt)
        ok = None
        if not isbn:
-            pass
+            extra = ''
        elif check_isbn(isbn) is not None:
            extra = _('This ISBN is valid')
            ok = True