python - xlsxwriter 和 pandas 用于报告

Question

我正在尝试创建一个基本的 Excel 报告。

我正在尝试显示数据框以及一些自定义文本/标题，而不是数据框的一部分。

但是，我只能得到其中之一。我不太明白数据框出现所需的代码结尾(workbook = writer.book 和 worksheet = writer.sheets['Reports'] .

这是我的代码:

writer = pd.ExcelWriter('reportTemplate.xlsx', engine='xlsxwriter')

workbook = xlsxwriter.Workbook('reportTemplate.xlsx')
worksheet = workbook.add_worksheet('Reports')

# REPORT TITLE
worksheet.write('D2','Daily In-Store Report')

workbook = xlsxwriter.Workbook('reportTemplate.xlsx')
worksheet = workbook.add_worksheet('Reports')
worksheet.write('D2','Daily In-Store Report')

reportTimes = ['Day','Week','Period','Quarter','Year']
cityList = ['ontario','bayshore','ottawa','limeridge','oshawa','scarborough','sherway','massonville','gatineau',
            'quebec','anjou','dix30','Fairview','laval','mtltrust','stbruno','gcapitale','stefoy','rivieres','chicoutimi','sherbrooke','canada']

# LOOP THROUGH FILES
rowNb = 4
for time in reportTimes:
    # TITLE
    tableTitle = time + ' report as of ...'
    worksheet.write('A'+str(rowNb),tableTitle)
    rowNb += 1

    headRow, secondHead = createHeadings(time)
    worksheet.write_row('B' + str(rowNb), headRow)  
    worksheet.write_row('B' + str(rowNb), secondHead)
    rowNb += 2

    df = pd.read_csv('fy_' + time.lower() + '.csv')
    df.set_index('legacy_id',inplace=True)
    df = df.reindex(cityList)
    print(df)

    df.to_excel(writer,sheet_name='Reports',startrow = rowNb,header=False)

    workbook  = writer.book
    worksheet = writer.sheets['Reports']

    writer.save()

由于代码现在，它只显示数据框

Answer 1

我不清楚您是否要尝试在一个 Excel 文件中写入多个工作表。如果是这样，问题可能是您将同一张名为“报告”的工作表重写了四次。另外，这里还有一些可以尝试的基础知识。把df.to_excel()之后pd.ExcelWriter() 。然后从 for 中删除循环最后四行。最后，输入writer.save() for之后循环结束。 (当我第一次学习它们时，这对我来说也不是很清楚。请参阅 this link 上的更多示例。)

编辑:这是完全执行的代码(带有 stub 数据)。其中关键之一是使用 writer.sheets['Reports'] = worksheet 启用对工作表的多次写入。 - 参见this explanation .

dummy_df = pd.DataFrame([[10,np.NaN],[12,42],[16,np.NaN],[20,3],[25,16],[30,1],[40,19],[60,99]],columns=['legacy_id', 'b'])
writer = pd.ExcelWriter('reportTemplate.xlsx', engine='xlsxwriter')
workbook = writer.book
worksheet = workbook.add_worksheet('Reports')
writer.sheets['Reports'] = worksheet # enable multiple writes to sheet

# REPORT TITLE
worksheet.write('D2','Daily In-Store Report')

reportTimes = ['Day','Week','Period','Quarter','Year']
cityList = ['ontario','bayshore','ottawa','limeridge','oshawa','scarborough','sherway','massonville','gatineau',
            'quebec','anjou','dix30','Fairview','laval','mtltrust','stbruno','gcapitale','stefoy','rivieres','chicoutimi','sherbrooke','canada']

# LOOP THROUGH FILES
rowNb = 4
for time in reportTimes:
    # TITLE
    tableTitle = time + ' report as of ...'
    worksheet.write('A'+str(rowNb),tableTitle)
    rowNb += 1

    headRow, secondHead = "dummy head row", "dummy second head" #I don't have your createHeadings(time)
    worksheet.write_row('B' + str(rowNb), headRow)  
    worksheet.write_row('B' + str(rowNb), secondHead)
    rowNb += 2

    df = dummy_df.copy(deep=True) # pd.read_csv('fy_' + time.lower() + '.csv')
    df.set_index('legacy_id',inplace=True)
    df = df.reindex(cityList)
    #print(df)
    df.to_excel(writer,sheet_name='Reports', startrow = rowNb)
    rowNb += df.shape[0] #gives row count

writer.save()