[DEPRECATION WARNING]: Invoking "apt" only once while using a loop via
squash_actions is deprecated. Instead of using a loop to supply multiple items
and specifying `name: {{ item }}`, please use `name: [u'python-dev', u'python-
setuptools']` and remove the loop. This feature will be removed in version 2.11.
Deprecation warnings can be disabled by setting deprecation_warnings=False in
ansible.cfg.

• 这个在yaml文件里面怎么改一下，可以不让他抛出这个警告呢？这样对么？
  原来的是:

apt:
  name: "{{ item }}"
  state: latest
  update_cache: yes
with_items:
  - python-dev
  - python-setuptools

改为：

apt:
  name: [u'python-dev', u'python-setuptools']
  state: latest
  update_cache: yes