Strange thing with Jinja2 expressions evaluation

[Andrew Pashkin]

With this playbook:

- name: test playbook
  hosts: 127.0.0.1
  connection: local
  gather_facts: no
  tasks:
    - debug: msg="{{ 'ansible'|replace('a', 'b') }}"

Output will be:

"bnsible"

But with this:

- name: test playbook
  hosts: 127.0.0.1
  connection: local
  gather_facts: no
  tasks:
    - debug: msg="{{ 'ansible'|regex_replace('a', 'b') }}"

Output will be:

"{{'ansible'|regex_replace('a', 'b')}}"

Why in the last example expression is not evaluated?

ps
I use Ansible 1.5.4

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With kind regards, Andrew Pashkin.
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[Michael Peters]

That's a pretty old version of ansible. I suspect that the
regex_replace filter didn't exist then. You should definitely upgrade
since it works on 1.7.1.

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[Michael DeHaan]

Yep yep.

(You're also missing some security upgrades, so I would strongly recommend using 1.7.1 even if you don't need this)

We try to note in the docs every time there's a feature added in a specific version, but I see we didn't do that for regex_replace, so I'll add the note about it.

Thanks very much for the report!

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[Andrew Pashkin]

Yes indeed, I forgot to add Ansible PPA. Thanks!

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-- 
With kind regards, Andrew Pashkin.
cell phone - +7 (985) 898 57 59