python - 删除多个 Excel 电子表格中的列

Question

有没有办法在python中删除多个excel文件中的列？即我有一个包含多个 xlsx 文件的文件夹。每个文件大约有 5 列(日期、值、纬度、经度、区域)。我想删除每个 excel 文件中除日期和值之外的所有列。

Answer 1

假设您有一个包含多个 excel 文件的文件夹:

from pathlib import Path

folder = Path('excel_files')

xlsx_only_files = list(folder.rglob('*.xlsx'))


def process_files(xls_file):

    #stem is a method in pathlib 
    #that gets just the filename without the parent or the suffix
    filename = xls_file.stem

    #sheet = None ensure the data is read in as a dictionary
    #this sets the sheetname as the key
    #usecols allows you to read in only the relevant columns
    df = pd.read_excel(xls_file, usecols = ['date','value'] ,sheet_name = None)

    df_cleaned = [data.assign(sheetname=sheetname,
                              filename = filename)
                  for sheetname, data in df.items()
                 ]

    return df_cleaned


combo = [process_files(xlsx) for xlsx in xlsx_only_files]

final = pd.concat(combo, ignore_index = True)

让我知道事情的后续

stem