如何使用 Pandas 使用列表写入 Excel 列？

Question

I have this Excel (this is a preview but it's structured like that for the entire Excel)

I have a list of lists where the food name is associated to the ID, here's a preview:

id_food_list = [['6737', 'Apple'], ['6733', 'Cheese'], ['6731', 'Tomatos']]

It would like this:

Since there's a column I'm ignoring (and one at the bottom too), I'm looking to do something like:

if sub-list[1] == column value --> write sub-list[0] to corresponding 'ID' column

Answer 1

I created the 'Book1.xlsx' as shown in your first figure.

import pandas as pd

id_food_list = [['6737', 'Apple'], ['6733', 'Cheese'], ['6731', 'Tomatos']]

df = pd.read_excel('Book1.xlsx', index_col=0)
for sublist in id_food_list:
    df.loc[sublist[1], 'ID'] = sublist[0]

df.to_excel('Book1.xlsx', index=False)

Since I assigned the first column as index column of the dataframe by index_col=0 , the loc can set the value by indexing the row and column names.