gistfile1.txt

Ensure my virtualenv is installed:
  virtualenv.installed:
    - name: /srv/myvenv

Run a command:
  cmd.run:
    - name: mycommand

Ensure my file is installed:
  file.managed:
    - name: /srv/requirements.txt
    - listen_in:
      - virtualenv: Ensure my virtualenv is installed <-- using the ID
      - cmd: mycommand <-- using the name


Ensure my other file is installed:
  file.managed:
    - name: /srv/requirements2.txt
    - listen_in:
      - cmd: Ensure my virtualenv is installed <-- people copy/paste the command line then forget to change cmd to virtualenv