View source for RPI/Mathactivity/XML/Sample Parser

 import xml.dom.minidom  #XML handling by DOM
 import sys, os		#To check if the settings file is already there
 import string

 class SettingsParser:
 	 def __init__(self, filepath):
 		 if os.path.exists(filepath):
 		  #Parse and dig out the levels
 			 dom = xml.dom.minidom.parse(filepath)
 			 di = self.__getLevels(dom)
 			 #Figure out what level problems we should give
 			 self.level = self.__processLevel(di)
 		 else:
 			 pass #First time it's been run, need to launch tutorial somehow, also get and set colors 		
  	def __getLevels(self, dom):
 	 	"""Parses the tree for <level> tags, returning both the number of the level and the percent success this
  		user has had."""
 	 	levels = []
 	       	percents = []
 		tries = []
 		#Loop over the nodes we want (2nd tier from root)
 		for node in dom.childNodes[0].childNodes:
 			#If it's not a text node and it's the right type, let's get to work
 			if node.nodeType == node.ELEMENT_NODE and node.localName == "level":
 				#Grab the level number and convert to int for returning
 				levels.append(int(node.getAttribute("num")))
 				stri = node.firstChild.data.lstrip().split()
 				for word in stri:
 					if word.find('%') != -1:
 						word = float(word[0:-1])
 						percents.append(word)
 					else:
 						word = int(word)
 						tries.append(word)
 		dic = self.__setupDictionary(levels, percents, tries)
 		return dic 		
 	def __processLevel(self, dic):
 		"""Works out at which level problem the game should start."""
 		level = 0
 		for elem in dic.keys():
 			#If we're over the percentage and have tried enough times, skip the level
 			if dic[elem][0] > 75 and dic[elem][1] > 10:
 				level+=1
 		return level 		
 	def __setupDictionary(self, levels, percents, tries):
   	  	dic = {}
 		for i in range(len(levels)):
 			dic[i] = [percents[i], tries[i]]
 		return dic

XML Format this is to parse:
 <settings>
  <level>
   #% //Percent successful at this level
   # //Number of tries at this level
  </level>
 </settings>