old_contents: connect_str = 'mysql+mysqldb://root:123456@localhost/dbn?charset=utf8'
  cookie_secret = 'W++P63orTUC05eqzqZWCsdP85NlLuED3pNwrzlABnMA=' #sample
new_contents: import os
  
  ROOT_DIR = os.path.abspath('.')
  connect_str = 'sqlite:///{path}'.format(path=os.path.join(ROOT_DIR, 'pyprint.db3'))
  cookie_secret = '3F8PhdGMSyuI5AjFM5Da8+/X2mP8XEzHtC/j57v3r6E='
  
subject: fix localsettings.sample.py