old_contents: class Application():
  	def __init__(self,data):
  		self.data = data
  		self.main()
  
  	def main(self):
  		self.output = data
new_contents: class Application():
  	def __init__(self,data):
  		self.data = data
  		self.main()
  
  	def main(self):
  		self.output = self.data
subject: Fix data