old_contents: # Copyright 2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License"). You
  # may not use this file except in compliance with the License. A copy of
  # the License is located at
  #
  #     http://aws.amazon.com/apache2.0/
  #
  # or in the "license" file accompanying this file. This file is
  # distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
  # ANY KIND, either express or implied. See the License for the specific
  # language governing permissions and limitations under the License.
  from pygments.token import Token
  from pygments.style import Style
  from pygments.util import ClassNotFound
  from pygments.styles import get_style_by_name
  from prompt_toolkit.styles import default_style_extensions, style_from_dict
  
  
  class StyleFactory(object):
      """Provide styles for the autocomplete menu and the toolbar.
  
      :type style: :class:`pygments.style.StyleMeta`
      :param style: Contains pygments style info.
      """
  
      def __init__(self, style_name):
          self.style = self.style_factory(style_name)
  
      def style_factory(self, style_name):
          """Retrieve the specified pygments style.
  
          If the specified style is not found, the vim style is returned.
  
          :type style_name: str
          :param style_name: The pygments style name.
  
          :rtype: :class:`pygments.style.StyleMeta`
          :return: Pygments style info.
          """
          try:
              style = get_style_by_name(style_name)
          except ClassNotFound:
              style = get_style_by_name('vim')
  
          # Create a style dictionary.
          styles = {}
          styles.update(style.styles)
          styles.update(default_style_extensions)
          t = Token
          styles.update({
              t.Menu.Completions.Completion.Current: 'bg:#00aaaa #000000',
              t.Menu.Completions.Completion: 'bg:#008888 #ffffff',
              t.Menu.Completions.Meta.Current: 'bg:#00aaaa #000000',
              t.Menu.Completions.Meta: 'bg:#00aaaa #ffffff',
              t.Scrollbar.Button: 'bg:#003333',
              t.Scrollbar: 'bg:#00aaaa',
              t.Toolbar: 'bg:#222222 #cccccc',
              t.Toolbar.Off: 'bg:#222222 #696969',
              t.Toolbar.On: 'bg:#222222 #ffffff',
              t.Toolbar.Search: 'noinherit bold',
              t.Toolbar.Search.Text: 'nobold',
              t.Toolbar.System: 'noinherit bold',
              t.Toolbar.Arg: 'noinherit bold',
              t.Toolbar.Arg.Text: 'nobold'
          })
  
          return style_from_dict(styles)
  
new_contents: # Copyright 2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License"). You
  # may not use this file except in compliance with the License. A copy of
  # the License is located at
  #
  #     http://aws.amazon.com/apache2.0/
  #
  # or in the "license" file accompanying this file. This file is
  # distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
  # ANY KIND, either express or implied. See the License for the specific
  # language governing permissions and limitations under the License.
  from pygments.token import Token
  from pygments.util import ClassNotFound
  from pygments.styles import get_style_by_name
  from prompt_toolkit.styles import default_style_extensions, style_from_dict
  
  
  class StyleFactory(object):
      """Provide styles for the autocomplete menu and the toolbar.
  
      :type style: :class:`pygments.style.StyleMeta`
      :param style: Contains pygments style info.
      """
  
      def __init__(self, style_name):
          self.style = self.style_factory(style_name)
  
      def style_factory(self, style_name):
          """Retrieve the specified pygments style.
  
          If the specified style is not found, the vim style is returned.
  
          :type style_name: str
          :param style_name: The pygments style name.
  
          :rtype: :class:`pygments.style.StyleMeta`
          :return: Pygments style info.
          """
          try:
              style = get_style_by_name(style_name)
          except ClassNotFound:
              style = get_style_by_name('vim')
  
          # Create a style dictionary.
          styles = {}
          styles.update(style.styles)
          styles.update(default_style_extensions)
          t = Token
          styles.update({
              t.Menu.Completions.Completion.Current: 'bg:#00aaaa #000000',
              t.Menu.Completions.Completion: 'bg:#008888 #ffffff',
              t.Menu.Completions.Meta.Current: 'bg:#00aaaa #000000',
              t.Menu.Completions.Meta: 'bg:#00aaaa #ffffff',
              t.Scrollbar.Button: 'bg:#003333',
              t.Scrollbar: 'bg:#00aaaa',
              t.Toolbar: 'bg:#222222 #cccccc',
              t.Toolbar.Off: 'bg:#222222 #696969',
              t.Toolbar.On: 'bg:#222222 #ffffff',
              t.Toolbar.Search: 'noinherit bold',
              t.Toolbar.Search.Text: 'nobold',
              t.Toolbar.System: 'noinherit bold',
              t.Toolbar.Arg: 'noinherit bold',
              t.Toolbar.Arg.Text: 'nobold'
          })
  
          return style_from_dict(styles)
  
subject: Remove unused import