id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
6968	misleading error message when base template has no blocks	James Tauber	nobody	"If one extends a template that has no blocks, the error shown is a !IndexError. It would be nice if that case were caught and a message to the effect of ""base template has no blocks"" shown.

For example, change render() in loader_tags.py to catch !IndexError:

{{{
        try:
            while isinstance(compiled_parent.nodelist[pos], TextNode):
                pos += 1
        except IndexError:
            raise TemplateSyntaxError, ""Template cannot be extended, because it doesn't contain a TextNode"" 
}}}"		closed	Uncategorized	dev		duplicate			Unreviewed	0	0	0	0	0	0