title: Variable interpolation in a for loop?
body: <p>I've got a list of hosts that I'm trying to iterate over for a ssh connection. In ruby I can use #{variable} to access a the variable within a command, what should I be doing for python?</p>
  
  <p>I've included the ruby syntax in the following python code as a placeholder of where I'd like the functionality. What is the pythonic way of doing this?</p>
  
  <pre><code>h = """
  foo-pants-linux-001
  foo-pants-linux-002
  foo-pants-linux-003
  foo-pants-linux-004
  foo-pants-linux-005
  """
  
  hosts = h.split()
  
  for host in hosts:
      subprocess.check_output("ssh foobar@#{host} `echo hi!`")
  </code></pre>