code: def readkmz(self, filename):
          '''reads in a kmz file and returns xml nodes'''
          #Strip quotation marks if neccessary
          filename.strip('"')
          #Open the zip file (as applicable)    
          if filename[-4:] == '.kml':
              fo = open(filename, "r")
              fstring = fo.read()
              fo.close()
          elif filename[-4:] == '.kmz':
              zip=ZipFile(filename)
              for z in zip.filelist:
                  if z.filename[-4:] == '.kml':
                      fstring=zip.read(z)
                      break
              else:
                  raise Exception("Could not find kml file in %s" % filename)
          else:
              raise Exception("Is not a valid kml or kmz file in %s" % filename)
                  
          #send into the xml parser
          kmlstring = parseString(fstring)
  
          #get all the placenames
          nodes=kmlstring.getElementsByTagName('Placemark')
          
          return nodef readkmz(self, filename):
          '''reads in a kmz file and returns xml nodes'''
          #Strip quotation marks if neccessary
          filename.strip('"')
          #Open the zip file (as applicable)    
          if filename[-4:] == '.kml':
              fo = open(filename, "r")
              fstring = fo.read()
              fo.close()
          elif filename[-4:] == '.kmz':
              zip=ZipFile(filename)
              for z in zip.filelist:
                  if z.filename[-4:] == '.kml':
                      fstring=zip.read(z)
                      break
              else:
                  raise Exception("Could not find kml file in %s" % filename)
          else:
              raise Exception("Is not a valid kml or kmz file in %s" % filename)
                  
          #send into the xml parser
          kmlstring = parseString(fstring)
  
          #get all the placenames
          nodes=kmlstring.getElementsByTagName('Placemark')
          
          return nodes
docs: reads in a kmz file and returns xml nodes