python 读取、写入、追加、覆盖xls文件

0、写在前面

测试源xls是这样的

1、读取xls

def read_xls(filename: str, sheet_name: str) -> List[list]:
    filename = os.path.abspath(filename)
    assert os.path.isfile(filename), f'{filename} is not file'
    assert filename.lower().endswith('.xls'), f'不是.xls文件:{filename}'
    wb: Book = xlrd.open_workbook(filename)
    sheet_names = wb.sheet_names()
    assert sheet_name in sheet_names, 'sheet name error'
    sheet: Sheet = wb.sheet_by_name(sheet_name)
    all_data = []
    for row_x in range(sheet.nrows):
        row = []
        for col_x in range(sheet.ncols):
            row.append(sheet.cell(row_x, col_x).value)
        all_data.append(row)
    print("all data".center(50, '*'))
    for one in all_data:
        print(one)
    return all_data

运行

2、写入xls

def write_xls(filename: str, sheet_name: str, data: List[list]):
    filename = os.path.abspath(filename)
    assert filename.lower().endswith('.xls'), f'不是.xls文件:{filename}'
    if not os.path.exists(os.path.dirname(filename)):
        os.makedirs(os.path.dirname(filename))
    wb: Workbook = xlwt.Workbook(filename)
    sheet: xlwt.Worksheet = wb.add_sheet(sheet_name)
    for row_x, row in enumerate(data):
        for clo_x, clo in enumerate(row):
            sheet.write(row_x, clo_x, clo)
    wb.save(filename)
    print(f"保存到路径:{filename}")

运行

3、覆盖xls

def cover_xls(filename: str, sheet_name: str, data: List[list]):
    filename = os.path.abspath(filename)
    assert os.path.isfile(filename), f'{filename} is not file'
    assert filename.lower().endswith('.xls'), f'不是.xls文件:{filename}'
    wb: Book = xlrd.open_workbook(filename)
    assert sheet_name in wb.sheet_names(), 'sheet name error'

    wb2: xlwt.Workbook = copy(wb)
    sheet2: xlwt.Worksheet = wb2.get_sheet(sheet_name)
    for row_x, row in enumerate(data):
        for clo_x, clo in enumerate(row):
            sheet2.write(row_x, clo_x, clo)
    wb2.save('over.xls')

运行

4、追加xls

def append_xls(filename: str, sheet_name: str, data: List[list]):
    filename = os.path.abspath(filename)
    assert os.path.isfile(filename), f'{filename} is not file'
    assert filename.lower().endswith('.xls'), f'不是.xls文件:{filename}'
    wb: Book = xlrd.open_workbook(filename)
    sheet: Sheet = wb.sheet_by_name(sheet_name)
    assert sheet_name in wb.sheet_names(), 'sheet name error'

    wb2: xlwt.Workbook = copy(wb)
    sheet2: xlwt.Worksheet = wb2.get_sheet(sheet_name)
    n_rows = sheet.nrows
    for row_x, row in enumerate(data):
        for clo_x, clo in enumerate(row):
            sheet2.write(row_x + n_rows, clo_x, clo)
    wb2.save('append.xls')

运行

5、代码汇总

import os
from typing import List

import xlrd
import xlwt
from xlrd import Book
from xlrd.sheet import Sheet
from xlutils.copy import copy
from xlwt import Workbook


def read_xls(filename: str, sheet_name: str) -> List[list]:
    filename = os.path.abspath(filename)
    assert os.path.isfile(filename), f'{filename} is not file'
    assert filename.lower().endswith('.xls'), f'不是.xls文件:{filename}'
    wb: Book = xlrd.open_workbook(filename)
    sheet_names = wb.sheet_names()
    assert sheet_name in sheet_names, 'sheet name error'
    sheet: Sheet = wb.sheet_by_name(sheet_name)
    all_data = []
    for row_x in range(sheet.nrows):
        row = []
        for col_x in range(sheet.ncols):
            row.append(sheet.cell(row_x, col_x).value)
        all_data.append(row)
    print("all data".center(50, '*'))
    for one in all_data:
        print(one)
    return all_data


def write_xls(filename: str, sheet_name: str, data: List[list]):
    filename = os.path.abspath(filename)
    assert filename.lower().endswith('.xls'), f'不是.xls文件:{filename}'
    if not os.path.exists(os.path.dirname(filename)):
        os.makedirs(os.path.dirname(filename))
    wb: Workbook = xlwt.Workbook(filename)
    sheet: xlwt.Worksheet = wb.add_sheet(sheet_name)
    for row_x, row in enumerate(data):
        for clo_x, clo in enumerate(row):
            sheet.write(row_x, clo_x, clo)
    wb.save(filename)
    print(f"保存到路径:{filename}")


def append_xls(filename: str, sheet_name: str, data: List[list]):
    filename = os.path.abspath(filename)
    assert os.path.isfile(filename), f'{filename} is not file'
    assert filename.lower().endswith('.xls'), f'不是.xls文件:{filename}'
    wb: Book = xlrd.open_workbook(filename)
    sheet: Sheet = wb.sheet_by_name(sheet_name)
    assert sheet_name in wb.sheet_names(), 'sheet name error'

    wb2: xlwt.Workbook = copy(wb)
    sheet2: xlwt.Worksheet = wb2.get_sheet(sheet_name)
    n_rows = sheet.nrows
    for row_x, row in enumerate(data):
        for clo_x, clo in enumerate(row):
            sheet2.write(row_x + n_rows, clo_x, clo)
    wb2.save('append.xls')


def cover_xls(filename: str, sheet_name: str, data: List[list]):
    filename = os.path.abspath(filename)
    assert os.path.isfile(filename), f'{filename} is not file'
    assert filename.lower().endswith('.xls'), f'不是.xls文件:{filename}'
    wb: Book = xlrd.open_workbook(filename)
    assert sheet_name in wb.sheet_names(), 'sheet name error'

    wb2: xlwt.Workbook = copy(wb)
    sheet2: xlwt.Worksheet = wb2.get_sheet(sheet_name)
    for row_x, row in enumerate(data):
        for clo_x, clo in enumerate(row):
            sheet2.write(row_x, clo_x, clo)
    wb2.save('over.xls')


def main():
    filename = "src.xls"
    sheet_name = "Sheet1"
    all_data = read_xls(filename, sheet_name)
    write_xls("write.xls", sheet_name, all_data)
    data = [
        ['a', 'b', 'c', 'd'],
        ['A', 'B', 'C', 'D']
    ]
    append_xls(filename, sheet_name, data)
    cover_xls(filename, sheet_name, data)


if __name__ == '__main__':
    main()