message: boost: Handle all python libraries naming schemes.
diff: @@ -50,15 +50,9 @@ class Boost(drake.Configuration):
  'context': 'context',
  'coroutine': 'coroutine',
  'iostreams': 'iostreams',
  - 'python': (
  - 'python36',
  - 'python-3.5',
  - 'python-3.4',
  - 'python-3.3',
  - 'python-3.2',
  - 'python3',
  - 'python',
  - )
  + 'python': list(itertools.chain(
  + *(('python3{}'.format(v), 'python-3.{}'.format(v)) for v in range(7)),
  + ['python3', 'python']))
  }
  def __init__(self,
  