docs: def incrementName(nameList, name):
      """
      return a name that is unique in a given nameList through
      attaching a number to it
  
      >>> l = []
  
      now we will add 3xfoo 2xbar and one klaus to our list:
  
      >>> l.append( incrementName(l,'foo') )
      >>> l.append( incrementName(l,'bar') )
      >>> l.append( incrementName(l,'foo') )
      >>> l.append( incrementName(l,'foo') )
      >>> l.append( incrementName(l,'bar') )
      >>> l.append( incrementName(l,'klaus') )
  
      >>> print sorted(l)
      ['bar', 'bar2', 'foo', 'foo2', 'foo3', 'klaus']
      """
      if name not in nameList:
          return name
      newName = name + str(1)
      for n in range(1, len(nameList) + 2):
          found = False
          for b in nameList:
              newName = name + str(n)
              if b == newName:
                  found = True
          if not found:
              break
      return newName