old_contents: from docutils import nodes
  from docutils.parsers.rst import directives
  
  CODE = """\
  <iframe width="%(width)d" height="%(height)d"
  scrolling="no" frameborder="no"
  src="https://w.soundcloud.com/player/?url=http://api.soundcloud.com/tracks/%(sid)s">
  </iframe>
  """
  
  def soundcloud(name, args, options, content, lineno,
  				contentOffset, blockText, state, stateMachine):
  	""" Restructured text extension for inserting SoundCloud embedded music """
  	string_vars = {
  		'sid': content[0],
  		'width': 600,
  		'height': 160,
  		'extra': ''
  	}
  	extra_args = content[1:]  # Because content[0] is ID
  	extra_args = [ea.strip().split("=") for ea in extra_args]  # key=value
  	extra_args = [ea for ea in extra_args if len(ea) == 2]  # drop bad lines
  	extra_args = dict(extra_args)
  	if 'width' in extra_args:
  		string_vars['width'] = extra_args.pop('width')
  	if 'height' in extra_args:
  		string_vars['height'] = extra_args.pop('height')
  
  	return [nodes.raw('', CODE % string_vars, format='html')]
  
  
  
  soundcloud.content = True
  directives.register_directive('soundcloud', soundcloud)
new_contents: from docutils import nodes
  from docutils.parsers.rst import directives
  
  CODE = """\
  <iframe width="%(width)d" height="%(height)d"
  scrolling="no" frameborder="no"
  src="https://w.soundcloud.com/player/?url=http://api.soundcloud.com/tracks/%(sid)s">
  </iframe>
  """
  
  
  def soundcloud(name, args, options, content, lineno,
                 contentOffset, blockText, state, stateMachine):
      """ Restructured text extension for inserting SoundCloud embedded music """
      string_vars = {
          'sid': content[0],
          'width': 600,
          'height': 160,
          'extra': ''
      }
      extra_args = content[1:]  # Because content[0] is ID
      extra_args = [ea.strip().split("=") for ea in extra_args]  # key=value
      extra_args = [ea for ea in extra_args if len(ea) == 2]  # drop bad lines
      extra_args = dict(extra_args)
      if 'width' in extra_args:
          string_vars['width'] = extra_args.pop('width')
      if 'height' in extra_args:
          string_vars['height'] = extra_args.pop('height')
  
      return [nodes.raw('', CODE % string_vars, format='html')]
  
  soundcloud.content = True
  directives.register_directive('soundcloud', soundcloud)
  
subject: Fix Flake 8 issues