With spaces.

test.yml

---
- hosts: webserver
  become: true
  tasks:
    - name: install epel
      yum: name="https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm" state=present
    - name: install web components
      yum: name={{item}} state=present
      with_items:
        - httpd
        - mod_wsgi
        - python-pip
        - python-virtualenv
    - name: ensure apache started
      service: name=httpd state=started enabled=yes

    - name: ensure mod_wsgi enabled
      modules: state=present name=mod_wsgi
      notify: restart httpd

  handlers:
    - name: restart httpd
      service: name=httpd state=restarted