code: def show(title, lst, full=-1):
      
      txt = title + ' (' + str(len(lst)) + ') items :\n '
      num = 0
      for i in lst:
          if full == -1 or num < full:
              if type(i) is str:
                  txt = txt + i + ',\n '
              else:
                  txt = txt + i + ', ['
                  for j in i:
                      txt = txt + j + ', '
                  txt = txt + ']\n'
          num = num + 1
      try:
          print(txt)
      except Exception as ex:
          print('index.show() - cant print line, error ' + str(ex))
docs: for testing, simply shows a list details