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i have a simple ModelForm: class MyForm(ModelForm): def __init__(self, *args, **kwargs): super(MyForm, self).__init__(*args, **kwargs) del self.fields['name'] As you can see, I try to remove a field from the form's field list (the field definitively exists in the model), but I get an Exception: TemplateSyntaxError at [..] Caught an exception while rendering: "Key 'name' not found in Form" I did not write a custom form, so the template where the error occurs is: /templates/admin/includes/fieldset.html, error at line 4 Any ideas? -- UPDATE -- The problem appears only in the admin area. -- UPDATE 2 -- Maybe a trace dump gives more info: Original Traceback (most recent call last): File "/Library/Python/2.5/site-packages/django/template/debug.py", line 71, in render_node result = node.render(context) File "/Library/Python/2.5/site-packages/django/template/defaulttags.py", line 155, in render nodelist.append(node.render(context)) File "/Library/Python/2.5/site-packages/django/template/defaulttags.py", line 239, in render value = bool_expr.resolve(context, True) File "/Library/Python/2.5/site-packages/django/template/__init__.py", line 546, in resolve obj = self.var.resolve(context) File "/Library/Python/2.5/site-packages/django/template/__init__.py", line 687, in resolve value = self._resolve_lookup(context) File "/Library/Python/2.5/site-packages/django/template/__init__.py", line 722, in _resolve_lookup current = current() File "/Library/Python/2.5/site-packages/django/contrib/admin/helpers.py", line 81, in errors return mark_safe(u'\n'.join([self.form[f].errors.as_ul() for f in self.fields]).strip('\n')) File "/Library/Python/2.5/site-packages/django/forms/forms.py", line 105, in __getitem__ raise KeyError('Key %r not found in Form' % name) KeyError:

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