old_contents: # coding: utf-8
  # Copyright (c) Materials Virtual Lab.
  # Distributed under the terms of the BSD License.
  
  from __future__ import division, unicode_literals, print_function
  
  """
  #TODO: Replace with proper module doc.
  """
  
  from flask import Flask
  
  app = Flask(__name__)
  
  import views
  
new_contents: # coding: utf-8
  # Copyright (c) Materials Virtual Lab.
  # Distributed under the terms of the BSD License.
  
  from __future__ import division, unicode_literals, print_function
  
  """
  #TODO: Replace with proper module doc.
  """
  
  from flask import Flask
  
  app = Flask(__name__)
  
  from . import views
  
subject: Fix ImportError