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【已解决】Python中处理操作Excel中的图表(Chart,Graph)

Python crifan 4646浏览 0评论

【问题】

想要折腾Python中的Excel中的图标,Chart,Graph。

【解决过程】

1.参考:

use python to generate graph in excel

说是可以用pywin32OLE automation

去试试其代码:

#!/usr/bin/python
# -*- coding: utf-8 -*-
"""
Function:
【已解决】Python中处理操作Excel中的图表(Chart,Graph)
https://www.crifan.com/python_process_excel_chart_graph

Author:     Crifan Li
Version:    2012-12-25
Contact:    admin at crifan dot com
"""

from win32com.client import Dispatch;

def excelChart():
    ex = Dispatch("Excel.Application");
    print "ex=",ex;
    
if __name__ == "__main__":
    excelChart();

结果出错:

D:\tmp\tmp_dev_root\python\excel_chart>excel_chart.py

Traceback (most recent call last):

  File "D:\tmp\tmp_dev_root\python\excel_chart\excel_chart.py", line 13, in <module>

    from win32com.client import Dispatch;

ImportError: No module named win32com.client

很明显,是没有对应的库。

2.关于上述错误的折腾过程,参见:

【已解决】Python中出错:ImportError: No module named win32com.client

3.再参考:

Creating Charts in Excel with pyExcelerator.ExcelMagic

去写代码,结果又出现了错误,详细折腾过程见:

4.最后,最终结果是,

在当前文件夹下面,建立一个空的xsl文件:chart_demo.xls

然后用下面的代码:

#!/usr/bin/python
# -*- coding: utf-8 -*-
"""
Function:
【已解决】Python中处理操作Excel中的图表(Chart,Graph)
https://www.crifan.com/python_process_excel_chart_graph

Author:     Crifan Li
Version:    2012-12-25
Contact:    admin at crifan dot com
"""

import os;
from win32com.client import Dispatch;
#from win32com.client import *;

def excelChart():
    xl = Dispatch("Excel.Application");
    #xl = win32com.client.Dispatch("Excel.Application")
    print "xl=",xl;

    #[1] Fail
    # xlsPath = "chart_demo.xls";
    # wb = xl.Workbooks.open(xlsPath); #pywintypes.com_error

    #[2] Fail
    # xlsPath = "D:\tmp\tmp_dev_root\python\excel_chart\chart_demo.xls";
    # absPath = os.path.abspath(xlsPath);
    # print "absPath=",absPath; #absPath= D:\tmp\tmp_dev_root\python\excel_chart\        mp      mp_dev_root\python\excel_chart\chart_demo.xls
    # wb = xl.Workbooks.open(absPath); #pywintypes.com_error

    #[3] Fail
    # xlsPath = "D:\tmp\tmp_dev_root\python\excel_chart\chart_demo.xls";
    # normalPath = os.path.normpath(xlsPath);
    # print "normalPath=",normalPath; #normalPath= D:  mp      mp_dev_root\python\excel_chart\chart_demo.xls
    # wb = xl.Workbooks.open(normalPath); #pywintypes.com_error

    #[4] Fail
    # rawPath = r"chart_demo.xls";
    # wb = xl.Workbooks.open(rawPath); #pywintypes.com_error
    
    #[5] OK
    xlsPath = "chart_demo.xls";
    absPath = os.path.abspath(xlsPath);
    print "absPath=",absPath; #absPath= D:\tmp\tmp_dev_root\python\excel_chart\chart_demo.xls
    wb = xl.Workbooks.open(absPath); #OK
        
    #[6] OK
    # rawPath = r"D:\tmp\tmp_dev_root\python\excel_chart\chart_demo.xls";
    # wb = xl.Workbooks.open(rawPath); # OK


    xl.Visible = 1;
    ws = wb.Worksheets(1);
    ws.Range('$A1:$D1').Value = ['NAME', 'PLACE', 'RANK', 'PRICE'];
    ws.Range('$A2:$D2').Value = ['Foo', 'Fooland', 1, 100];
    ws.Range('$A3:$D3').Value = ['Bar', 'Barland', 2, 75];
    ws.Range('$A4:$D4').Value = ['Stuff', 'Stuffland', 3, 50];
    wb.Save();
    wb.Charts.Add();
    wc1 = wb.Charts(1);
    
if __name__ == "__main__":
    excelChart();

写入的excel中的内容是:

sheet1 content

生成的图表的效果是:

generated chart ui

 

【总结】

总的来说,使用win32com.client,去操作excel文件,效果还是不错的。

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