How to use registered variable in with_items list?

[Tim John]

Hey guys, I'm trying to use a registered variable in **with_items** list, but can find a way to do it.

Here is what I'm doing:

```yaml

- name: acquire Django root path

  shell: pip show django | grep 'Location' | sed 's/Location:\ //g'

  register: django_root

- name: customize Graphite Apache configuration

  lineinfile: dest={{ apache_vhost_folder }}/graphite.conf regexp={{ item.default }} line={{ item.custom }} state=present

  with_items:

     - { default: 'WSGISocketPrefix run/wsgi', custom: 'WSGISocketPrefix /var/run/{{ apache_service_name }}/wsgi' }

     - { default: '\@DJANGO_ROOT\@', custom: "{{ django_root.stdout_lines }}" } # trying to use registered variable django_root, but failed

```

First, I get the Django root path, and register it as a variable named `django_root`;

Then, I'd like to use it in the second item of `with_items` list, but failed.

Is there a good way to achieve this goal? Thanks!

Tim