old_contents: from __future__ import unicode_literals
  
  __version__ = '1.9.0'
  
  
  def class_from_string(class_name):
      """
      Used to load a class object dynamically by name
      """
      parts = class_name.split('.')
      module = ".".join(parts[:-1])
      m = __import__(module)
      for comp in parts[1:]:
          m = getattr(m, comp)
      return m
  
new_contents: from __future__ import unicode_literals
  
  __version__ = '1.9.1'
  
  
  def class_from_string(class_name):
      """
      Used to load a class object dynamically by name
      """
      parts = class_name.split('.')
      module = ".".join(parts[:-1])
      m = __import__(module)
      for comp in parts[1:]:
          m = getattr(m, comp)
      return m
  
subject: Bump version to 1.9.1