Python使用openpyxl复制整张sheet

from copy import copy
from openpyxl import load_workbook, Workbook
 
def replace_xls(src_file,tag_file,sheet_name):
 
#    src_file是源xlsx文件，tag_file是目标xlsx文件，sheet_name是目标xlsx里的新sheet名称
 
 print("Start sheet %s copy from %s to %s"%(sheet_name,src_file,tag_file))
 wb = load_workbook(src_file)
 wb2 = load_workbook(tag_file)
 
 ws = wb.get_sheet_by_name(wb.get_sheet_names()[0])
 ws2 = wb2.create_sheet(sheet_name.decode('utf-8'))
 
 max_row=ws.max_row  #最大行数
 max_column=ws.max_column  #最大列数
 
 wm=zip(ws.merged_cells) #开始处理合并单元格
 if len(wm)>0 :
 for i in range(0,len(wm)):
  cell2=str(wm[i]).replace('(MergeCell ','').replace('>,)','')
  print("MergeCell : %s" % cell2)
  ws2.merge_cells(cell2)
 
 for m in range(1,max_row + 1):
 ws2.row_dimensions[m].height = ws.row_dimensions[m].height 
 for n in range(1,1 + max_column):
  if n27 :
  c=chr(n+64).upper() #ASCII字符,chr(65)='A'
  else:
  if n  677 :
   c=chr(divmod(n,26)[0]+64)+chr(divmod(n,26)[1]+64)
  else:
   c=chr(divmod(n,676)[0]+64) + chr(divmod(divmod(n,676)[1],26)[0]+64) + chr(divmod(divmod(n,676)[1],26)[1]+64)
  i='%s%d'%(c,m) #单元格编号
  if m == 1 :
#   print("Modify column %s width from %d to %d" % (n, ws2.column_dimensions[c].width ,ws.column_dimensions[c].width))
   ws2.column_dimensions[c].width = ws.column_dimensions[c].width
  try:
  getattr(ws.cell(row=m, column=c), "value" )
  cell1=ws[i]  #获取data单元格数据
  ws2[i].value=cell1.value  #赋值到ws2单元格
  if cell1.has_style: #拷贝格式
   ws2[i].font = copy(cell1.font)
   ws2[i].border = copy(cell1.border)
   ws2[i].fill = copy(cell1.fill)
   ws2[i].number_format = copy(cell1.number_format)
   ws2[i].protection = copy(cell1.protection)
   ws2[i].alignment = copy(cell1.alignment)
  except AttributeError as e:
  print("cell(%s) is %s" % (i,e))
  continue
 
 wb2.save(tag_file)
 
 wb2.close()
 wb.close()