Fixed #17888 -- no longer silence exceptions inside of check_test. Thanks to brutasse for the patch.

1 files changed, 2 insertions, 6 deletions

diff --git a/django/forms/widgets.py b/django/forms/widgets.py
index fdb9f50688..7651efccd0 100644
--- a/django/forms/widgets.py
+++ b/django/forms/widgets.py
@@ -507,11 +507,7 @@ class CheckboxInput(Widget):
 
     def render(self, name, value, attrs=None):
         final_attrs = self.build_attrs(attrs, type='checkbox', name=name)
-        try:
-            result = self.check_test(value)
-        except: # Silently catch exceptions
-            result = False
-        if result:
+        if self.check_test(value):
             final_attrs['checked'] = 'checked'
         if not (value is True or value is False or value is None or value == ''):
             # Only add the 'value' attribute if a value is non-empty.
@@ -525,7 +521,7 @@ class CheckboxInput(Widget):
             return False
         value = data.get(name)
         # Translate true and false strings to boolean values.
-        values =  {'true': True, 'false': False}
+        values = {'true': True, 'false': False}
         if isinstance(value, six.string_types):
             value = values.get(value.lower(), value)
         return value