diff options
Diffstat (limited to 'django/forms')
| -rw-r--r-- | django/forms/widgets.py | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/django/forms/widgets.py b/django/forms/widgets.py index 482c718118..81db2a24f3 100644 --- a/django/forms/widgets.py +++ b/django/forms/widgets.py @@ -82,7 +82,9 @@ class Media(StrAndUnicode): def add_css(self, data): if data: for medium, paths in data.items(): - self._css.setdefault(medium, []).extend([path for path in paths if path not in self._css[medium]]) + for path in paths: + if not self._css.get(medium) or path not in self._css[medium]: + self._css.setdefault(medium, []).append(path) def __add__(self, other): combined = Media() |