使用 pandas（附加）将 Dataframe 更改保存到同一个 xlsx 文件

Question

尝试将更改保存到同一个 xlsx 文件而不覆盖它，

我用什么来读取文件

import pandas as pd 

file = 'path'
df = pd.read_excel(f"{file}", 'sheet')

这已经覆盖了我的文件

df.to_excel(path)

根据 Pandas 团队，可以使用以下内容

https://github.com/pandas-dev/pandas/blob/main/pandas/io/excel/_base.py#L800-L814

 mode : {{'w', 'a'}}, default 'w'
        File mode to use (write or append). Append does not work with fsspec URLs.
    {storage_options}
        .. versionadded:: 1.2.0
    if_sheet_exists : {{'error', 'new', 'replace', 'overlay'}}, default 'error'
        How to behave when trying to write to a sheet that already
        exists (append mode only).
        * error: raise a ValueError.
        * new: Create a new sheet, with a name determined by the engine.
        * replace: Delete the contents of the sheet before writing to it.
        * overlay: Write contents to the existing sheet without removing the old
          contents.

如果有人可以指导我解决这个问题，我将不胜感激:)

Answer 1

我实际上浏览了文档并弄清楚了..我猜我在这里问这个问题太仓促了

将解决方案留在这里，希望它能帮助别人

with pd.ExcelWriter(file,
engine="openpyxl", mode="a", if_sheet_exists="overlay") as writer:
df.to_excel(writer, sheet_name=f"{sheets[counter]}")