{% set qemuVersion = ['{{ pillar['{{salt['lsb_distrib_codename']}}:qemu_version'] }}'] %}

local:
    Data failed to compile:
----------
    Rendering SLS 'base:libvirt' failed: Jinja syntax error: expected token ',', got '{'; line 11

---
[...]

{% set qemuVersion = ['{{ pillar['{{salt['lsb_distrib_codename']}}:qemu_version'] }}'] %}    <======================



pillar:
trusty:
  - qemu_version: '2.0.0+dfsg-2ubuntu1.12'
  - libvirt: '1.2.2-0ubuntu13.1.10yy1'
precise:
  - qemu_version: '1.5.0+dfsg-3ubuntu5.4~cloud0'
  - libvirt: 'latest'