code: def tox(args=''):
      '''Run tox.
  
      Build package and run unit tests against several pythons.
  
      Args:
          args: Optional arguments passed to tox.
          Example:
  
              fab tox:'-e py36 -r'
      '''
      basedir = dirname(__file__)
  
      latest_pythons = _determine_latest_pythons()
      # e.g. highest_minor_python: '3.6'
      highest_minor_python = _highest_minor(latest_pythons)
  
      _local_needs_pythons(flo('cd {basedir}  &&  '
                               'python{highest_minor_python} -m tox {args}')f tox(args=''):
      '''Run tox.
  
      Build package and run unit tests against several pythons.
  
      Args:
          args: Optional arguments passed to tox.
          Example:
  
              fab tox:'-e py36 -r'
      '''
      basedir = dirname(__file__)
  
      latest_pythons = _determine_latest_pythons()
      # e.g. highest_minor_python: '3.6'
      highest_minor_python = _highest_minor(latest_pythons)
  
      _local_needs_pythons(flo('cd {basedir}  &&  '
                               'python{highest_minor_python} -m tox {args}'))
docs: Run tox.
  
      Build package and run unit tests against several pythons.
  
      Args:
          args: Optional arguments passed to tox.
          Example:
  
              fab tox:'-e py36 -r'