python中操控excel的几个库:xlwt,xlrd,xlutils
阅读原文时间:2023年07月08日阅读:6

  xlrd模块提供在任何平台上从excel电子表格(.xls和.xlsx)中提取数据的功能,xlwt模块提供生成与Microsoft Excel 95 到2003版本兼容的excel文件的功能。

1、安装方法

# 方法一:
pip3 install xlrd
pip3 install xlwt

方法二:

在python官网http://pypi.python.org/pypi/xlrd/(xlwt)下载xlrd/xlwt的安装包。  
压缩包放置在python安装目录下python/Lib/site-packages。  
解压压缩包:tar zxvf xlrd-1.0.0.tar.gz  
进入到解压的文件夹:cd xlrd-1.0.0  
执行命令:python setup,py install

2、xlrd使用详解

(1)excel文档准备

准备excel文档:联系人.xls,内容如下所示:

(2)xlrd获取sheet工作表名称和对象

import xlrd

打开Excel文件读取器,加上utf-8编码可防止遇到中文字符乱码

data = xlrd.open_workbook('联系人.xls', encoding_override='utf-8')

获取所有sheet工作表名称

sheetnames = data.sheet_names()
print(sheetnames)
"""
['银行1', '银行2']
"""

通过索引获取指定sheet工作表名称

sheet_name = data.sheet_names()[1]
print(sheet_name)
"""
银行2
"""

通过工作表名称获取sheet对象

table_name = data.sheet_by_name(sheet_name)
print(table_name)
"""

"""

通过sheet索引获取sheet工作表对象

table_index = data.sheet_by_index(0)
print(table_index)
"""

"""

(3)sheet工作表行/列操作

# 获取行数和列数
nrows = table_name.nrows # 总行数
ncols = table_name.ncols # 总列数
print("银行2表,总行数: %s,总列数: %s" % (nrows, ncols))
"""
银行2表,总行数: 5,总列数: 7
"""

根据sheet对象获取整行和整列的值

sheet_row_val = table_name.row_values(3) # 表示第四行数据是列表形式
sheet_col_val = table_name.col_values(3) # 表示第四列数据是列表形式
print("整行的值:%s , \n整列的值: %s" % (sheet_row_val, sheet_col_val))
"""
整行的值:['', '李九', '开发', 'IOS开发', 87888.0, 13213123.0, 'wang1@164.com'] ,
整列的值: ['', '工作职责', 'UI设计', 'IOS开发', '硬件维护']
"""

获取当前行的有效单元格长度

print(table_name.row_len(3))
print(table_index.row_len(3))
"""
7
8
"""

(4)sheet工作表单元格操作

  单元格是组成表格的最小单位,可以拆分或合并。每个数据的输入和修改都是在单元格中进行的。

# 获取指定单元格内容
print(table_name.cell(1,0).value) # 第二行第一列
print(table_name.cell_value(2,1)) # 第三行第二列
print(table_name.row(1)[0].value) # 第二行第一列
"""
机构名称
张八
机构名称
"""

获取单元格内容的数据类型

ctype说明:0 empty, 1 string, 2 number, 3 date, 4 boolean, 5 error

print(table_index.cell(1,0).ctype) # 银行1表,2行1列内容 机构名称
print(table_index.cell(3,4).ctype) # 银行1表,4行5列内容 888
print(table_index.cell(2,6).ctype) # 银行1表,3行7列内容 2019/5/7
"""
1
2
3
"""

日期单元格内容处理

from datetime import datetime, date
if table_index.cell(2,6).ctype == 3:
print(table_index.cell(2, 6).value)
date_value = xlrd.xldate_as_tuple(table_index.cell(2, 6).value, data.datemode)
print(date_value)
print(date(*date_value[:3]))
print(date(*date_value[:3]).strftime('%Y/%m/%d'))
"""
43592.0
(2019, 5, 7, 0, 0, 0)
2019-05-07
2019/05/07
"""

获取number类型的单元格内容

if table_index.cell(3, 4).ctype == 2:
print(table_index.cell(3, 4).value)
num_value = int(table_index.cell(3, 4).value) # 转为整型
print(num_value)
"""
888.0
888
"""

(5)获取合并单元格内容

  需要使用merged_cells属性,获取merged_cells返回的row和col低位的索引即可。

# 需要在读取文件时添加formatting_info参数,默认是False

需要设置为True,才能调用merged_cells属性获取到值

xls_data = xlrd.open_workbook('联系人.xls', formatting_info=True)
sheet_data = xls_data.sheet_by_name('银行2')
print(sheet_data.merged_cells)
"""
[(0, 1, 0, 7), (2, 5, 0, 1)]
"""

  merged_cells返回的这四个参数的含义:(row,row_range,col,col_range)。

  因此,(0,1,0,7)表示第1列~第7列合并;(2,5,0,1)表示第3行~第6行合并。

# 分别获取合并两个单元格内容
merge_value = []
for (row, row_range, col, col_range) in sheet_data.merged_cells:
merge_value.append((row, col))
"""
[(0, 0), (2, 0)]
"""
print(merge_value)
for i in merge_value:
print(sheet_data.cell(i[0], i[1]).value)
"""
银行2
银行2
"""

3、xlwt使用详解

  使用xlwt模块对Excel文件进行创建、设置、保存等操作。

import xlwt

创建一个工作簿(workbook),并设置编码

workbook = xlwt.Workbook(encoding='ascii')

workbook = xlwt.Workbook(encoding='utf-8')

创建一个工作表(worksheet)

worksheet = workbook.add_sheet("My Worksheet")

样式设置(可选)

style = xlwt.XFStyle() # 初始化样式
font = xlwt.Font() # 为样式创建字体
font.name = "Times New Roman"
font.bold = True # 加粗
font.underline = True # 下划线
font.italic = True # 斜体字
style.font = font # 设定样式

写入excel,参数对应 行 列 值

不带样式的写入

worksheet.write(1,0, 'Unformatted value')

带样式的写入

worksheet.write(2,0, 'Formatted value', style)

保存文件

workbook.save("xlwt_test.xls")

  打开Excel文件显示效果如下:

(1)设置单元格宽度

import xlwt

workbook = xlwt.Workbook()
worksheet = workbook.add_sheet('My Sheet')
worksheet.write(0, 0,'My Cell Contents')

设置单元格宽度

worksheet.col(0).width = 30003
workbook.save('cell_width.xls')

显示效果:

(2)输入日期到单元格

import xlwt
import datetime

workbook = xlwt.Workbook()
worksheet = workbook.add_sheet('My Sheet')

style = xlwt.XFStyle()
style.num_format_str = 'M/D/YY' # Other options: D-MMM-YY, D-MMM, MMM-YY, h:mm, h:mm:ss, h:mm, h:mm:ss, M/D/YY h:mm, mm:ss, [h]:mm:ss, mm:ss.0

worksheet.write(0, 0, datetime.datetime.now(), style)
workbook.save('Excel_Workbook.xls')

显示效果:

3)添加公式到单元格

import xlwt

workbook = xlwt.Workbook()
worksheet = workbook.add_sheet('My Sheet')
worksheet.write(0, 0, 5) # Outputs 5
worksheet.write(0, 1, 2) # Outputs 2

添加公式

worksheet.write(1, 0, xlwt.Formula('A1*B1')) # Should output "10" (A1[5] * A2[2])
worksheet.write(1, 1, xlwt.Formula('SUM(A1,B1)')) # Should output "7" (A1[5] + A2[2])

workbook.save('Excel_formula.xls')

显示效果:

(4)添加超链接到单元格

import xlwt

workbook = xlwt.Workbook()
worksheet = workbook.add_sheet('My Sheet')

worksheet.write(0, 0, xlwt.Formula('HYPERLINK("http://www.baidu.com";"Baidu")')) # Outputs the text "Baidu" linking to http://www.baidu.com

workbook.save('Excel_hyperlink.xls')

显示效果:

(5)合并列和行

import xlwt

workbook = xlwt.Workbook()
worksheet = workbook.add_sheet('My Sheet')

worksheet.write_merge(0, 0, 0, 3, 'First Merge') # Merges row 0's columns 0 through 3.
font = xlwt.Font() # Create Font
font.bold = True # Set font to Bold
style = xlwt.XFStyle() # Create Style
style.font = font # Add Bold Font to Style
worksheet.write_merge(1, 2, 0, 3, 'Second Merge', style) # Merges row 1 through 2's columns 0 through 3.
workbook.save('Excel_merge.xls')

显示效果:

(6)其他单元格设置

"""
设置单元格内容的对其方式:
"""
import xlwt
workbook = xlwt.Workbook()
worksheet = workbook.add_sheet('My Sheet')
alignment = xlwt.Alignment() # Create Alignment
alignment.horz = xlwt.Alignment.HORZ_CENTER # May be: HORZ_GENERAL, HORZ_LEFT, HORZ_CENTER, HORZ_RIGHT, HORZ_FILLED, HORZ_JUSTIFIED, HORZ_CENTER_ACROSS_SEL, HORZ_DISTRIBUTED
alignment.vert = xlwt.Alignment.VERT_CENTER # May be: VERT_TOP, VERT_CENTER, VERT_BOTTOM, VERT_JUSTIFIED, VERT_DISTRIBUTED
style = xlwt.XFStyle() # Create Style
style.alignment = alignment # Add Alignment to Style
worksheet.write(0, 0, 'Cell Contents', style)
workbook.save('Excel_Workbook.xls')

"""
为单元格议添加边框:
"""

Please note: While I was able to find these constants within the source code, on my system (using LibreOffice,) I was only presented with a solid line, varying from thin to thick; no dotted or dashed lines.

import xlwt
workbook = xlwt.Workbook()
worksheet = workbook.add_sheet('My Sheet')
borders = xlwt.Borders() # Create Borders
borders.left = xlwt.Borders.DASHED
DASHED虚线
NO_LINE没有
THIN实线

May be: NO_LINE, THIN, MEDIUM, DASHED, DOTTED, THICK, DOUBLE, HAIR, MEDIUM_DASHED, THIN_DASH_DOTTED, MEDIUM_DASH_DOTTED, THIN_DASH_DOT_DOTTED, MEDIUM_DASH_DOT_DOTTED, SLANTED_MEDIUM_DASH_DOTTED, or 0x00 through 0x0D.

borders.right = xlwt.Borders.DASHED
borders.top = xlwt.Borders.DASHED
borders.bottom = xlwt.Borders.DASHED
borders.left_colour = 0x40
borders.right_colour = 0x40
borders.top_colour = 0x40
borders.bottom_colour = 0x40
style = xlwt.XFStyle() # Create Style
style.borders = borders # Add Borders to Style
worksheet.write(0, 0, 'Cell Contents', style)
workbook.save('Excel_Workbook.xls')

"""
为单元格设置背景色:
"""
import xlwt
workbook = xlwt.Workbook()
worksheet = workbook.add_sheet('My Sheet')
pattern = xlwt.Pattern() # Create the Pattern
pattern.pattern = xlwt.Pattern.SOLID_PATTERN # May be: NO_PATTERN, SOLID_PATTERN, or 0x00 through 0x12
pattern.pattern_fore_colour = 5 # May be: 8 through 63. 0 = Black, 1 = White, 2 = Red, 3 = Green, 4 = Blue, 5 = Yellow, 6 = Magenta, 7 = Cyan, 16 = Maroon, 17 = Dark Green, 18 = Dark Blue, 19 = Dark Yellow , almost brown), 20 = Dark Magenta, 21 = Teal, 22 = Light Gray, 23 = Dark Gray, the list goes on…
style = xlwt.XFStyle() # Create the Pattern
style.pattern = pattern # Add Pattern to Style
worksheet.write(0, 0, 'Cell Contents', style)
workbook.save('Excel_Workbook.xls')

4、xlwt使用详解

xlutils 常用方法(修改 excel)

然而并没有直接修改 xls 文件的方法。通常的做法是,读取出文件,复制一份数据,对其进行修改,再保存。在复制时,需要用到 xlutils 中的方法:

例如:

from xlrd import open_workbook
from xlutils.copy import copy

打开文件

rb = open_workbook("example.xls")

复制

wb = copy(rb)

选取表单

s = wb.get_sheet(0)

写入数据

s.write(0, 1, 'new data')

保存

wb.save('example.xls')

5、基于Django实现excel导出

在django项目中实现用excel导出数据库中数据。

# 注册客户(学生)到stark
class CustomerConfig(ModelStark):
"""代码省略"""

def excel\_export(self, request):  
    """导出excel表格"""  
    list\_obj = models.Customer.objects.all().order\_by("create\_time")  
    if list\_obj:  
        # 创建工作薄  
        ws = Workbook(encoding="UTF-8")  
        w = ws.add\_sheet(u'数据报表第一页')  
        w.write(0, 0, 'id')  
        w.write(0, 1, u'姓名')  
        w.write(0, 2, u'性别')  
        w.write(0, 3, u'民族')  
        w.write(0, 4, u'籍贯')  
        w.write(0, 5, u'身份证号')  
        w.write(0, 6, u'通知书邮寄地址')  
        w.write(0, 7, u'邮编')  
        w.write(0, 8, u'联系电话')  
        w.write(0, 9, u'联系电话2')  
        w.write(0, 10, u'院校')  
        w.write(0, 11, u'专业')  
        w.write(0, 12, u'创建日期')  
        w.write(0, 13, u'生源人')  
        w.write(0, 14, u'备注')  
        # 写入数据  
        excel\_row = 1  
        for obj in list\_obj:  
            data\_id = obj.id  
            data\_name = obj.name  
            # data\_gender = obj.gender\_choices  # 只显示数字  
            data\_gender = obj.get\_gender\_display()  
            data\_nation = obj.nation  
            data\_birth = obj.birth\_place  
            data\_identity\_num = obj.identity\_num  
            data\_address = obj.address  
            data\_postcode = obj.postcode  
            data\_tel = obj.tel  
            data\_tel2 = obj.tel\_2  
            data\_school = obj.stu\_school.title  
            data\_course = obj.course.first().name  
            data\_time = obj.create\_time.strftime('%Y-%m-%d %H:%M:%S')  
            data\_consultant = obj.consultant.name  
            data\_memo = obj.memo  
            w.write(excel\_row, 0, data\_id)  
            w.write(excel\_row, 1, data\_name)  
            w.write(excel\_row, 2, data\_gender)  
            w.write(excel\_row, 3, data\_nation)  
            w.write(excel\_row, 4, data\_birth)  
            w.write(excel\_row, 5, data\_identity\_num)  
            w.write(excel\_row, 6, data\_address)  
            w.write(excel\_row, 7, data\_postcode)  
            w.write(excel\_row, 8, data\_tel)  
            w.write(excel\_row, 9, data\_tel2)  
            w.write(excel\_row, 10, data\_school)  
            w.write(excel\_row, 11, data\_course)  
            w.write(excel\_row, 12, data\_time)  
            w.write(excel\_row, 13, data\_consultant)  
            w.write(excel\_row, 14, data\_memo)  
            excel\_row += 1  
            # 检测文件是否存在  
            # 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("stu\_info.xls")  
        if exist\_file:  
            os.remove(r"stu\_info.xls")  
        ws.save("customer\_info.xls")  
        ############################  
        sio = BytesIO()  
        ws.save(sio)  
        sio.seek(0)  
        response = HttpResponse(sio.getvalue(), content\_type='application/vnd.ms-excel')  
        response\['Content-Disposition'\] = 'attachment; filename=stu\_info.xls'  
        response.write(sio.getvalue())  
        return response

转载自:https://www.cnblogs.com/xiugeng/p/10912417.html

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