Python calls xlwings to realize the content modification and pie chart drawing of excel on the original file

1. Original documents

Two, python program

import xlwings as xw
import numpy as np
import matplotlib.pyplot as plt

plt.rcParams['font.family']='SimHei'

app=xw.App(visible=True,add_book=False)
workbook=app.books.open('data.xlsx')
sheet=workbook.sheets['Sheet1']

# 将李四缺失的数学成绩改成82并保存到原文件
sheet.range('D3').value=82

# 计算总成绩
for i in range(2,5):
    sheet.range(i,6).formula=f'=SUM(C{
      
      i}:E{
      
      i})'

# 计算平均成绩
for j in range(3,6):
    sheet.range(5,j).formula=f'=AVERAGE('+chr(64+j)+'2'+':'+chr(64+j)+'4'+')'
    # 保留3位小数
    sheet.range(5,j).number_format='0.000'

# 根据总成绩进行排名
for i in range(2,5):
    sheet.range(i,7).formula=f'=RANK.AVG(F{
      
      i},F2:F4)'

# 绘制饼图
cmap=plt.colormaps['tab20c']
outer_colors=cmap(np.arange(3)*4)
inner_colors=cmap([0,1,2,4,5,6,8,9,10])
fig,ax=plt.subplots()
ax.pie(np.array(sheet.range('C2:E4').value).sum(axis=1),autopct=lambda x:'{:.0f}'.format(x*np.array(sheet.range('C2:E4').value).sum()/100),
       radius=1,labels=sheet.range('B2:B4').value,pctdistance=0.7,colors=outer_colors,wedgeprops=dict(width=0.3,edgecolor='w'),textprops={
    
    'fontsize':10,'color':'k'})
ax.pie(np.array(sheet.range('C2:E4').value).flatten(),autopct=lambda x:'{:.0f}'.format(x*np.array(sheet.range('C2:E4').value).sum()/100),
       radius=0.7,labels=sheet.range('C1:E1').value*3,pctdistance=0.8,colors=inner_colors,wedgeprops=dict(width=0.3,edgecolor='w'),textprops={
    
    'fontsize':8,'color':'k'})
ax.set(aspect='equal')
sheet.pictures.add(fig,name='成绩',update=True,left=sheet.range('I1').left,top=sheet.range('I1').top)

print(sheet.range('A1').expand().value)
workbook.save('data.xlsx')
workbook.close()
app.quit()

3. Effect display