old_contents: #!/usr/bin/python3.4
  # -*-coding:Utf-8 -*
  '''module to manage MinMax settings representation'''
  import xml.etree.ElementTree as xmlMod
  import os, re
  
  class MinMax:
  	'''class to represent MinMax settings'''
  	
  	
  	def __init__(self, mMstr = None, xml= None):
  		'''initialize MinMax settings with default value or values extracted from an xml object'''
  		if mMstr is not None:
  			self.fromStr(mMstr)
  		else:
  			self.fromXml(xml)
  	
  	
  	
  	
  	
  	def fromStr(self, mMstr):
  		'''initialize MinMax with default value'''
  		mMstr = mMstr.split('to')
  		self.min = int(mMstr[0].strip())
  		self.max = int(mMstr[1].strip())
  		
  		if self.min > self.max:
  			self.min = self.max
  	
  	
  	
  	
  	
  	def check(mMstr):
  		'''class method to check if a string well syntaxed to be used by MinMax.fromStr()'''
  		return re.search(r'^\d{1,} *to *\d{1,}$', mMstr) is not None
  		
  	
  	
  	
  	
  	
  	def fromXml(self, xml):
  		'''initialize MinMax with values extracted from an xml object'''
  		self.min = int(xml.get('min'))
  		self.max = int(xml.get('max'))
  	
  	
  	
  	
  	
  	def toXmlAttr(self):
  		'''export MinMax into xml syntaxed attribute string'''
  		return 'min="'+str(self.min)+'" max="'+str(self.max)+'"'
  	
  	
  	
  	
  	
  	def toStr(self):
  		'''A method to export settings in a simple string'''
  		return str(self.min)+' to '+str(self.max)
  	
  	
  	
  	
  	
  	def print(self):
  		'''a method to display the MinMax settings'''
  		print(self.toStr(), sep='')
  	
  	
  	
  	
  	def edit(self, log, label):
  		'''a method to edit MinMax object'''
  		log.menuIn('Edit '+label)
  		
  		while True:
  			os.system('clear')
  			log.print()
  			
  			print('\n\n        Edit '+label+' :\n\nCurrent '+label+' :'+self.toStr()+'\n')
  			choice = input('new min/max settings (syntaxe: MIN to Max):').strip().lower()
  			
  			if choice in ['', 'q', 'quit', 'cancel']:
  				log.menuOut()
  				return False
  			
  			if MinMax.check(choice):
  				self.fromStr(choice)
  				log.write(label+' set to : '+choice)
  				log.menuOut()
  				return True
  			else:
  				log.error('Unvalid setting syntaxe, respect the syntaxe «MIN to Max», where MIN and MAX are decimal number.')
  				continue
  			
  	
  	
  	
  	
  	
  
new_contents: #!/usr/bin/python3.4
  # -*-coding:Utf-8 -*
  '''module to manage MinMax settings representation'''
  import xml.etree.ElementTree as xmlMod
  import os, re
  
  class MinMax:
  	'''class to represent MinMax settings'''
  	
  	
  	def __init__(self, mMstr = None, xml= None):
  		'''initialize MinMax settings with default value or values extracted from an xml object'''
  		if mMstr is not None:
  			self.fromStr(mMstr)
  		else:
  			self.fromXml(xml)
  	
  	
  	
  	
  	
  	def fromStr(self, mMstr):
  		'''initialize MinMax with default value'''
  		mMstr = mMstr.split('to')
  		self.min = int(mMstr[0].strip())
  		self.max = int(mMstr[1].strip())
  		
  		if self.min > self.max:
  			self.min = self.max
  	
  	
  	
  	
  	
  	def check(mMstr):
  		'''class method to check if a string well syntaxed to be used by MinMax.fromStr()'''
  		return re.search(r'^\d{1,} *to *\d{1,}$', mMstr) is not None
  		
  	
  	
  	
  	
  	
  	def fromXml(self, xml):
  		'''initialize MinMax with values extracted from an xml object'''
  		self.min = int(xml.get('min'))
  		self.max = int(xml.get('max'))
  	
  	
  	
  	
  	
  	def toXmlAttr(self):
  		'''export MinMax into xml syntaxed attribute string'''
  		return 'min="'+str(self.min)+'" max="'+str(self.max)+'"'
  	
  	
  	
  	
  	
  	def toStr(self):
  		'''A method to export settings in a simple string'''
  		return str(self.min)+' to '+str(self.max)
  	
  	
  	
  	
  	
  	def print(self):
  		'''a method to display the MinMax settings'''
  		print(self.toStr(), sep='')
  	
  	
  	
  	
  	def edit(self, log, label):
  		'''a method to edit MinMax object'''
  		log.menuIn('Edit '+label)
  		
  		while True:
  			os.system('clear')
  			log.print()
  			
  			print('\n\n        Edit '+label+' :\n\nCurrent '+label+' :'+self.toStr()+'\n')
  			choice = input('new min/max settings (syntaxe: MIN to Max):').strip().lower()
  			
  			if choice in ['', 'q', 'quit', 'cancel']:
  				log.menuOut()
  				return False
  			
  			if MinMax.check(choice):
  				self.fromStr(choice)
  				log.write(label+' set to : '+choice+'\n')
  				log.menuOut()
  				return True
  			else:
  				log.error('Unvalid setting syntaxe, respect the syntaxe «MIN to Max», where MIN and MAX are decimal number.')
  				continue
  			
  	
  	
  	
  	
  	
  
subject: enhance log presentation (add a line break)