Question

I using google app engine, in 0.96 I have no problem to include a template as following

{% include "../header.html" %}

However, in 1.2 the code above not functioning??

Any idea?

Answer 1

The reason is that google.appengine.ext.webapp.template.render doesn’t use any user-configurable TEMPLATE_DIRS. Instead it invents its own TEMPLATE_DIRS byt taking the directory of the given template and using that at TEMPLATE_DIRS. This means if you call render("foo/bar/fie") it will use foo/bar as your template directory and look up files from there.

Now, the change from 0.96 til 1.2 is that the file lookup switched from using os.path.join to using django.utils._os.safe_join which does not allow escape from the base directory using ../.

I don’t see any obvious way around this. It seems like you must call render with a file directly in your template directory and not in a subdirectory.