title: Convert list of byte strings to bytearray (byte stream)
body: <p>I have a list of hex strings representing bytes, of the form "FF".  I want to convert the whole list to a byte stream so I can send it over a socket (Python 3).  It looks like the bytearray type would work, but I can't find any way to directly convert the list to a bytearray.</p>
  
  <p>I can do it manually in a loop, but figure there must be a better Python way to do this.</p>