如何让大pandas创build新的表而不是覆盖？

我正在为自己的工作build立一个自动报告工具。 我试图让我的代码工作，每次（每一天）我运行程序并生成报告创build另一个工作表。

date_time = time.strftime('%b %d %Y') writer = pd.ExcelWriter('BrokerRisk.xlsx', engine='xlsxwriter') df.to_excel(writer,'DataFrame-' + date_time) sums.to_excel(writer,'TotalByCounterparty-' + date_time) sums_sort.to_excel(writer,'SortedRank-' + date_time) workbook = writer.book worksheet1 = writer.sheets['DataFrame-' + date_time] worksheet2 = writer.sheets['TotalByCounterparty-' + date_time] worksheet3 = writer.sheets['SortedRank-' + date_time] writer.save() 

我试图实现datefunction，以便它会每天在技术上改变名称，但是这似乎也不起作用。 谁能提出一个简单的解决

Answer 1

使用engine=openpyxl作为engine=openpyxl会做你想做的事情，例如：

 from openpyxl import load_workbook from copy import copy import time class CopyWorkbook(object): def __init__(self, fname): self.fname = fname self.wb = load_workbook(fname) def save(self): self.wb.save(self.fname) def copy_worksheet(self, from_worksheet): # Create new empty sheet and append it to self(Workbook) ws = self.wb.create_sheet( title=from_worksheet.title ) for row, row_data in enumerate(from_worksheet.rows,1): for column, from_cell in enumerate(row_data,1): cell = ws.cell(row=row, column=column) cell.value = from_cell.value cell.font = copy(from_cell.font) date_time = time.strftime('%b %d %Y') writer = pd.ExcelWriter('dummy.xlsx', engine='openpyxl') df.to_excel(writer,'DataFrame-' + date_time) # ... Other DataFrame's .to_excel(writer, ... wb = CopyWorkbook('BrokerRisk.xlsx') for ws_new in writer.book.worksheets: wb.copy_worksheet(ws_new) wb.save() 

用Pythontesting：3.4.2 – openpyxl：2.4.1 – LibreOffice：4.3.3.2