不能通过writer.save保存excel
我尝试添加一个数据框到现有的excel文件 ，我在这个问题下阅读了一个答案： 如何写入到现有的excel文件而不覆盖数据（使用pandas）？
filename = 'template.xlsx' wb_target = load_workbook(filename) writer = pd.ExcelWriter(filename, engine='openpyxl') writer.wb_target = wb_target writer.sheets = dict((ws.title, ws) for ws in wb_target.worksheets) df_selection2.to_excel(writer,sheet_name='Selection',startrow=7, startcol=6,header=False, index=False) writer.save() 但是还是有一些问题：
IndexError Traceback (most recent call last) <ipython-input-3-3ca40cf2bef3> in <module>() 17 18 df_selection2.to_excel(writer,sheet_name='Selection',startrow=7, startcol=6,header=False, index=False) ---> 19 writer.save() 20 21 #df_selection2.to_excel(writer,sheet_name='Selection',startrow=7, startcol=6,header=False, index=False) C:\Anaconda3\lib\site-packages\pandas\io\excel.py in save(self) 725 Save workbook to disk. 726 """ --> 727 return self.book.save(self.path) 728 729 def write_cells(self, cells, sheet_name=None, startrow=0, startcol=0): C:\Anaconda3\lib\site-packages\openpyxl\workbook\workbook.py in save(self, filename) 337 save_dump(self, filename) 338 else: --> 339 save_workbook(self, filename) 340 341 C:\Anaconda3\lib\site-packages\openpyxl\writer\excel.py in save_workbook(workbook, filename) 266 archive = ZipFile(filename, 'w', ZIP_DEFLATED, allowZip64=True) 267 writer = ExcelWriter(workbook, archive) --> 268 writer.save(filename) 269 return True 270 C:\Anaconda3\lib\site-packages\openpyxl\writer\excel.py in save(self, filename) 248 def save(self, filename): 249 """Write data into the archive.""" --> 250 self.write_data() 251 self.archive.close() 252 C:\Anaconda3\lib\site-packages\openpyxl\writer\excel.py in write_data(self) 91 archive.writestr(ARC_STYLE, tostring(stylesheet)) 92 ---> 93 archive.writestr(ARC_WORKBOOK, write_workbook(self.workbook)) 94 archive.writestr(ARC_WORKBOOK_RELS, write_workbook_rels(self.workbook)) 95 C:\Anaconda3\lib\site-packages\openpyxl\writer\workbook.py in write_workbook(workbook) 86 87 # book views ---> 88 active = get_active_sheet(wb) 89 view = BookView(activeTab=active) 90 root.bookViews =[view] C:\Anaconda3\lib\site-packages\openpyxl\writer\workbook.py in get_active_sheet(wb) 58 """ 59 idx = wb._active_sheet_index ---> 60 sheet = wb.active 61 if sheet.sheet_state == "visible": 62 return idx C:\Anaconda3\lib\site-packages\openpyxl\workbook\workbook.py in active(self) 128 def active(self): 129 """Get the currently active sheet""" --> 130 return self._sheets[self._active_sheet_index] 131 132 @active.setter IndexError: list index out of range
是因为我想修改的标签处于隐藏状态？
问题是你load_workbookvariableswb_target ，然后尝试分配给名为wb_target的writer的属性。 writer默认没有该属性。 所以当你分配它时，你创build了它。 这将导致没有好的地方。
相反，您需要将其分配给book的正确属性。 这个例子令人困惑，因为他们使用的variables是book所以你可能认为这两个variables需要相同。 他们不！
这是你的代码重写，应该工作正常。
import pandas as pd import numpy as np from openpyxl import load_workbook filename = 'template.xlsx' wb_target = load_workbook(filename) writer = pd.ExcelWriter(filename, engine='openpyxl') # my key change writer.book = wb_target writer.sheets = dict((ws.title, ws) for ws in wb_target.worksheets) df_selection2.to_excel( writer, sheet_name='Selection', startrow=7, startcol=6, header=False, index=False) writer.save()