openpyxl不将数据帧写入Excel工作表

Question

我有一些代码可以将pandas数据框写入Excel工作表，由于某种原因，它什么也没做。我以前成功使用过相同的方法。

book = load_workbook(os.path.commonpath(output)) #user is prompted for output file earlier in program
writer = pd.ExcelWriter(os.path.commonpath(output), engine = 'openpyxl')
writer.book = book
writer.sheets = dict((ws.title, ws) for ws in book.worksheets)

df.to_excel(writer, sheet_name = 'Check', startrow = writer.sheets['Check'].max_row, index = False) # this should write the df out starting at the first row that doesn't contain any data in the excel sheet. 

该程序运行正常，当我打开它时，没有输出到excel工作表。有什么想法吗？

Answer 1

我相信您在代码末尾需要一个writer.save()！