old_contents: #!/usr/bin/python3.4
  # -*-coding:Utf-8 -*
  '''module that contain queue class'''
  from renderingTask import renderingTask
  import os
  
  class queue:
  	'''class who contain the list of all the rendering task to manage'''
  	
  	
  	def __init__(self,xml=False):
  		'''initialize queue object with empty queue who is filled with values extract from an xml object if paste to the function'''
  		self.tasks = []
  		if xml != False:
  			self.fromXml(xml)
  	
  	
  	
  	
  	def fromXml(self,xml):
  		'''extract rendering task parameters from an xml object and add them to the queue'''
  		if xml.tag == 'queue':
  			for t in xml.findall('task'):
  				self.add(renderingTask(xml = t))
  	
  	
  	
  	
  	
  	def toXmlStr(self,head=False):
  		'''export rendering task queue to an xml syntax string '''
  		txt =''
  		if head:
  			txt+= '<?xml version="1.0" encoding="UTF-8"?>\n'
  		txt += '<queue>\n'
  		for r in self.tasks:
  			txt += r.toXmlStr()
  		txt += '</queue>\n'
  		return txt
  	
  	
  	
  	
  	
  	def add(self,added):
  		'''add rendering task to the queue''' 
  		if type(added) == renderingTask:
  			self.tasks.append(added)
  	
  	
  	
  	
  	
  	def list(self, log, scriptSetting):
  		'''list task and access editing functions'''
  		os.system('clear')
  		log.menuIn('Rendering Queue')
  		col = ['scene', 'duration', 'engine', 'B/Fground Anim', 'status']
  		
  		while True:
  			log.print()
  			print('RenderList :')
  			header, colSize = self.getListHeader(col)
  			print(header)
  			
  			choice = input("action?('q' to quit)").strip().lower()
  			
  			try:
  				if choice in ['q', 'quit', 'cancel']:
  					choice = -1
  				else:
  					choice = int(choice)
  			except ValueError:
  				choice = -9999
  			
  			if choice == -1:
  				log.menuOut()
  				return
  			
  			
  			
  	
  	
  	
  	
  	
  	def getListHeader(self, cols):
  		'''a method to get list header and column size for a list of attributes'''
  		txt = 'Task File Name                |'
  		size = [30]
  		
  		for col in cols:
  			if col == 'scene':
  				txt += 'Scene Name          |'
  				size.append(20)
  			elif col == 'duration':
  				txt += 'Duration|'
  				size.append(8)
  			elif col == 'engine':
  				txt += 'eng.(Dev)|'
  				size.append(9)
  			elif col == 'B/Fground Anim':
  				txt += 'B/F Anim|'
  				size.append(8)
  			elif col == 'status':
  				txt += 'Status  |'
  				size.append(8)
  		
  		return txt, size
  	
  	
  	
  	
  	
  
new_contents: #!/usr/bin/python3.4
  # -*-coding:Utf-8 -*
  '''module that contain queue class'''
  from renderingTask import renderingTask
  import os
  
  class queue:
  	'''class who contain the list of all the rendering task to manage'''
  	
  	
  	def __init__(self,xml=False):
  		'''initialize queue object with empty queue who is filled with values extract from an xml object if paste to the function'''
  		self.tasks = []
  		if xml != False:
  			self.fromXml(xml)
  	
  	
  	
  	
  	def fromXml(self,xml):
  		'''extract rendering task parameters from an xml object and add them to the queue'''
  		if xml.tag == 'queue':
  			for t in xml.findall('task'):
  				self.add(renderingTask(xml = t))
  	
  	
  	
  	
  	
  	def toXmlStr(self,head=False):
  		'''export rendering task queue to an xml syntax string '''
  		txt =''
  		if head:
  			txt+= '<?xml version="1.0" encoding="UTF-8"?>\n'
  		txt += '<queue>\n'
  		for r in self.tasks:
  			txt += r.toXmlStr()
  		txt += '</queue>\n'
  		return txt
  	
  	
  	
  	
  	
  	def add(self,added):
  		'''add rendering task to the queue''' 
  		if type(added) == renderingTask:
  			self.tasks.append(added)
  	
  	
  	
  	
  	
  	def list(self, log, scriptSetting):
  		'''list task and access editing functions'''
  		os.system('clear')
  		log.menuIn('Rendering Queue')
  		cols = ['scene', 'duration', 'engine', 'B/Fground Anim', 'status']
  		
  		while True:
  			log.print()
  			print('RenderList :')
  			header, colSize = self.getListHeader(cols)
  			print(header)
  			for i, task in enumerate(self.tasks):
  				ident = str(i)+(' '*(4-len(str(i))))+'|'
  				print(ident+task.getListRow(cols, colSize))
  			
  			choice = input("action?('q' to quit)").strip().lower()
  			
  			try:
  				if choice in ['q', 'quit', 'cancel']:
  					choice = -1
  				else:
  					choice = int(choice)
  			except ValueError:
  				choice = -9999
  			
  			if choice == -1:
  				log.menuOut()
  				return
  			
  			
  			
  	
  	
  	
  	
  	
  	def getListHeader(self, cols):
  		'''a method to get list header and column size for a list of attributes'''
  		txt = 'id  |Task File Name                |'
  		size = [30]
  		
  		for col in cols:
  			if col == 'scene':
  				txt += 'Scene Name          |'
  				size.append(20)
  			elif col == 'duration':
  				txt += 'Duration|'
  				size.append(8)
  			elif col == 'engine':
  				txt += 'eng.(Dev)|'
  				size.append(9)
  			elif col == 'B/Fground Anim':
  				txt += 'B/F Anim|'
  				size.append(8)
  			elif col == 'status':
  				txt += 'Status  |'
  				size.append(8)
  		
  		return txt, size
  	
  	
  	
  	
  	
  
subject: add instruction to write list row