old_contents: #!/usr/bin/python3.4
  # -*-coding:Utf-8 -*
  '''module to manage Renderlayer group'''
  import xml.etree.ElementTree as xmlMod
  import os, re
  
  class RLGroupList:
  	'''class to manage Renderlayer group'''
  	
  	
  	def __init__(self, keywords = None, xml= None):
  		'''initialize Renderlayer group with default value or values extracted from an xml object'''
  		if keywords is not None:
  			self.defaultInit(keywords)
  		else:
  			self.fromXml(xml)
  	
  	
  	
  	
  	
  	def defaultInit(self, keywords):
  		'''initialize Renderlayer group with default value'''
  		self.keywords = keywords
  	
  	
  	
  	
  	
  	def fromXml(self, xml):
  		'''initialize Renderlayer group with values extracted from an xml object'''
  		self.keywords = xml.get('keywords').split(';')
  	
  	
  	
  	
  	
  	def toXml(self):
  		'''export Renderlayer group into xml syntaxed string'''
  		txt = '<RenderlayerGroup keywords="'+';'.join(self.keywords)+'"/>\n'
  		
  		return txt
  	
  	
  	
  	
  	
  	def see(self, log, RLGlist, name):
  		'''menu to explore and edit Renderlayer group settings'''
  		change = False
  		log.menuIn('«'+name+'» Renderlayer Group')
  		
  		while True:
  			log.print()
  			
  			self.list()
  			
  			print('''\n\n        Menu :
  1- Add Keywords
  2- Remove Keywords
  3- Rename Group
  4- Erase Group
  0- Save And Quit
  
  ''')
  			
  			choice = input('Action?').strip().lower()
  			
  			if choice in ['0', 'q', 'quit', 'cancel']:
  				log.menuOut()
  				return change
  			elif choice == '1':
  				change = (self.add(log) or change)
  			elif choice == '2':
  				change = (self.remove(log) or change)
  			elif choice == '3':
  				change = (self.rename(log, RLGlist, name) or change)
  			elif choice == '4':
  				change = (self.erase(log, RLGlist, name) or change)
  			else:
  				log.error('Unvalid menu choice', False)
  		
  	
  	
  	
  	
  	
  	def list(self, index = False):
  		'''A method to list keyword of the Renderlayer Group'''
  		
  	
  	
  	
  	
  	
  	def choose(self, log):
  		'''A method to choose a keyword'''
  		
  	
  	
  	
  	
  	
  	
  	def add(self, log, versions):
  		'''A method to add a new keyword'''
  		
  	
  	
  	
  	
  	
  	def remove(self, log):
  		'''A method to remove a keyword'''
  		
  	
  	
  	
  	
  	
  	def rename(self, log):
  		'''A method to remove a keyword'''
  		
  	
  	
  	
  	
  	
  	def erase(self, log):
  		'''A method to remove a keyword'''
  		
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  
new_contents: #!/usr/bin/python3.4
  # -*-coding:Utf-8 -*
  '''module to manage Renderlayer group'''
  import xml.etree.ElementTree as xmlMod
  import os, re
  
  class RLGroupList:
  	'''class to manage Renderlayer group'''
  	
  	
  	def __init__(self, keywords = None, xml= None):
  		'''initialize Renderlayer group with default value or values extracted from an xml object'''
  		if keywords is not None:
  			self.defaultInit(keywords)
  		else:
  			self.fromXml(xml)
  	
  	
  	
  	
  	
  	def defaultInit(self, keywords):
  		'''initialize Renderlayer group with default value'''
  		self.keywords = keywords
  	
  	
  	
  	
  	
  	def fromXml(self, xml):
  		'''initialize Renderlayer group with values extracted from an xml object'''
  		self.keywords = xml.get('keywords').split(';')
  	
  	
  	
  	
  	
  	def toXml(self):
  		'''export Renderlayer group into xml syntaxed string'''
  		txt = '<RenderlayerGroup keywords="'+';'.join(self.keywords)+'"/>\n'
  		
  		return txt
  	
  	
  	
  	
  	
  	def see(self, log, RLGlist, name):
  		'''menu to explore and edit Renderlayer group settings'''
  		change = False
  		log.menuIn('«'+name+'» Renderlayer Group')
  		
  		while True:
  			log.print()
  			
  			self.list()
  			
  			print('''\n\n        Menu :
  1- Add Keywords
  2- Remove Keywords
  3- Rename Group
  4- Erase Group
  0- Save And Quit
  
  ''')
  			
  			choice = input('Action?').strip().lower()
  			
  			if choice in ['0', 'q', 'quit', 'cancel']:
  				log.menuOut()
  				return change
  			elif choice == '1':
  				change = (self.add(log) or change)
  			elif choice == '2':
  				change = (self.remove(log) or change)
  			elif choice == '3':
  				change = (self.rename(log, RLGlist, name) or change)
  			elif choice == '4':
  				change = (self.erase(log, RLGlist, name) or change)
  			else:
  				log.error('Unvalid menu choice', False)
  		
  	
  	
  	
  	
  	
  	def list(self, index = False):
  		'''A method to list keyword of the Renderlayer Group'''
  		print('Group Keywords :')
  		for k in self.keywords:
  			print('    '+k)
  	
  	
  	
  	
  	
  	def choose(self, log):
  		'''A method to choose a keyword'''
  		
  	
  	
  	
  	
  	
  	
  	def add(self, log, versions):
  		'''A method to add a new keyword'''
  		
  	
  	
  	
  	
  	
  	def remove(self, log):
  		'''A method to remove a keyword'''
  		
  	
  	
  	
  	
  	
  	def rename(self, log):
  		'''A method to remove a keyword'''
  		
  	
  	
  	
  	
  	
  	def erase(self, log):
  		'''A method to remove a keyword'''
  		
  	
  	
  	
  	
  	
  	
  	
  	
  	
  	
  
subject: implement keywords displaying