old_contents: # -*- coding: utf-8 -*-
  
  __author__ = 'Eric Larson'
  __email__ = 'eric@ionrock.org'
  __version__ = '0.1.0'
  
new_contents: # -*- coding: utf-8 -*-
  
  __author__ = 'Eric Larson'
  __email__ = 'eric@ionrock.org'
  __version__ = '0.1.0'
  
  import random
  
  
  CHARS = 'abcdefghijklmnopqrstuvwxyz0123456789'
  
  
  def randstr(length=7):
      return ''.join(random.choice(CHARS) for i in range(length))
  
subject: Implement randstr func