new_contents: import inspect
  
  def pv(name):
      # record=inspect.getouterframes(inspect.currentframe())[1]
      # frame=record[0]
      frame = inspect.currentframe().f_back
      val = eval(name, frame.f_globals, frame.f_locals)
      # print('{0}: {1}'.format(name, val))
      return '{0}: {1}'.format(name, val)
  
subject: Add debug helper