python 保存excel 文件

1，python 将数据库信息到处为excel。

使用模块xlwt，配合django

def excel_export(request):
    """
    导出excel表格
    """
    list_obj = Student.objects.all()
    if list_obj:
        # 创建工作薄
        ws = Workbook(encoding='utf-8')
        w = ws.add_sheet(u"学生表")
        w.write(0, 0, "学号")
        w.write(0, 1, u"姓名")
        w.write(0, 2, u"性别")
        w.write(0, 3, u"出生日期")
        # 写入数据
        excel_row = 1
        for obj in list_obj:
            data_id = obj.sno
            data_user = obj.sname
            data_sex = obj.ssex
            data_birthday = obj.sbirthday.strftime("%Y-%m-%d")
            # obj.sbirthday.strftime("%Y-%m-%d")
            w.write(excel_row, 0, data_id)
            w.write(excel_row, 1, data_user)
            w.write(excel_row, 2, data_sex)
            w.write(excel_row, 3, data_birthday)
            excel_row += 1
        # 方框中代码是保存本地文件使用，如不需要请删除该代码
        ###########################
        exist_file = os.path.exists("test.xls")
        if exist_file:
            os.remove(r"test.xls")
        ws.save("test.xls")
        ############################
        import io
        output = io.BytesIO()
        ws.save(output)
        response = HttpResponse(content_type='application/vnd.ms-excel')
        response['Content-Disposition'] = 'attachment; filename=test.xls'
        response.write(output.getvalue())
        return response

2，直接通过前端调用配置接口就自动下载excel文件了。