code: def htmljoin(ol,sp,**kwargs):
      '''
          ol = [1,2,3,4]
          htmljoin(ol,"option",outer="select")
          
      '''
      if('outer' in kwargs):
          outer = kwargs['outer']
      else:
          outer = ""
      if(outer):
          head = "<" + outer + ">"
          tail = "</" + outer + ">"
      else:
          head = ""
          tail = ""
      rslt = head
      length = ol.__len__()
      begin = "<" + sp + ">"
      end = "</" + sp + ">"
      for i in range(0,length):
          rslt = rslt + begin + str(ol[i]) + end
      rslt = rslt + tail
      return(rsltf htmljoin(ol,sp,**kwargs):
      '''
          ol = [1,2,3,4]
          htmljoin(ol,"option",outer="select")
          
      '''
      if('outer' in kwargs):
          outer = kwargs['outer']
      else:
          outer = ""
      if(outer):
          head = "<" + outer + ">"
          tail = "</" + outer + ">"
      else:
          head = ""
          tail = ""
      rslt = head
      length = ol.__len__()
      begin = "<" + sp + ">"
      end = "</" + sp + ">"
      for i in range(0,length):
          rslt = rslt + begin + str(ol[i]) + end
      rslt = rslt + tail
      return(rslt)
docs: ol = [1,2,3,4]
          htmljoin(ol,"option",outer="select")