old_contents: from flask import session, render_template, Blueprint
  
  from lexos.helpers import constants as constants
  from lexos.managers import session_manager as session_manager
  from lexos.models.filemanager_model import FileManagerModel
  from lexos.models.similarity_model import SimilarityModel
  from lexos.views.base_view import detect_active_docs
  
  # this is a flask blue print, it helps us to manage groups of views
  # see here for more detail:
  # http://exploreflask.com/en/latest/blueprints.html
  # http://flask.pocoo.org/docs/0.12/blueprints/
  sim_blueprint = Blueprint('sim_query', __name__)
  
  
  # Tells Flask to load this function when someone is at '/extension'
  @sim_blueprint.route("/similarity", methods=["GET"])
  def similarity():
      """Handles the similarity query page functionality.
  
      Returns ranked list of files and their cosine similarities to a comparison
      document.
      :return: a response object (often a render_template call) to flask and
      eventually to the browser.
      """
      # Detect the number of active documents.
      num_active_docs = detect_active_docs()
      id_label_map = \
          FileManagerModel().load_file_manager().get_active_labels_with_id()
  
      # 'GET' request occurs when the page is first loaded
      if 'analyoption' not in session:
          session['analyoption'] = constants.DEFAULT_ANALYZE_OPTIONS
      if 'similarities' not in session:
          session['similarities'] = constants.DEFAULT_SIM_OPTIONS
      return render_template(
          'similarity.html',
          labels=id_label_map,
          numActiveDocs=num_active_docs,
          itm="similarity"
      )
  
  
  @sim_blueprint.route("/similarityHTML", methods=['POST'])
  def sim_html():
      session_manager.cache_analysis_option()
      session_manager.cache_sim_options()
      return SimilarityModel().generate_sims_html()
  
new_contents: from flask import session, render_template, Blueprint
  
  from lexos.helpers import constants as constants
  from lexos.managers import session_manager as session_manager
  from lexos.models.filemanager_model import FileManagerModel
  from lexos.models.similarity_model import SimilarityModel
  from lexos.views.base_view import detect_active_docs
  
  # this is a flask blue print, it helps us to manage groups of views
  # see here for more detail:
  # http://exploreflask.com/en/latest/blueprints.html
  # http://flask.pocoo.org/docs/0.12/blueprints/
  sim_blueprint = Blueprint('sim_query', __name__)
  
  
  # Tells Flask to load this function when someone is at '/extension'
  @sim_blueprint.route("/similarity", methods=["GET"])
  def similarity():
      """Handles the similarity query page functionality.
  
      Returns ranked list of files and their cosine similarities to a comparison
      document.
      :return: a response object (often a render_template call) to flask and
      eventually to the browser.
      """
      # Detect the number of active documents.
      num_active_docs = detect_active_docs()
      id_label_map = \
          FileManagerModel().load_file_manager().get_active_labels_with_id()
  
      # 'GET' request occurs when the page is first loaded
      if 'analyoption' not in session:
          session['analyoption'] = constants.DEFAULT_ANALYZE_OPTIONS
      if 'similarities' not in session:
          session['similarities'] = constants.DEFAULT_SIM_OPTIONS
      return render_template(
          'similarity.html',
          labels=id_label_map,
          numActiveDocs=num_active_docs
      )
  
  
  @sim_blueprint.route("/similarityHTML", methods=['POST'])
  def sim_html():
      session_manager.cache_analysis_option()
      session_manager.cache_sim_options()
      return SimilarityModel().generate_sims_html()
  
subject: remove the itm because it does not seems to be used