class MyFileInput(forms.FileInput): def render(self,name, value, attrs=None): output = [] if value and hasattr(value, "url"): output.append('%s %s
%s ' % \ (_('Actual:'), value.url, value, _('Cambio:'))) output.append(super(MyFileInput, self).render(name, value, attrs)) return mark_safe(u''.join(output))