如何使用Python的xlrd/xlwt从一个Excel工作簿提取数据并输出到另一个工作簿？

Question

我正在尝试编写一个脚本，它将自动复制/粘贴员工时间表 从几个文件到一个编译文件。由于它们是带有项目代码的时间表，一些单元格留空，员工当天在其他项目上工作。此外，这些文件已经从xlsx（2007）转换为.csv.xls，xlrd似乎打开得很好。

我知道如何打开和创建book对象，但是我对这个模块的了解非常有限，所以我想也许一个通用算法会有帮助：

import xlrd, xlwt

put all following in for or while loop to iterate through files:
book = xlrd.open_workbook('mybook.csv.xls')
extract data; store data for ouput
use for loop to iterate over data, output to final sheet
open next file, repeat process storing each output below the previous

我正在寻找任何能帮助我找到答案的东西，而不仅仅是代码。 任何帮助都将不胜感激。谢谢。

Answer 1

这可能会有帮助。。。它尽可能地复制您的数据（日期保持为日期，空单元格不变成包含0长度内容的文本单元格，布尔值和错误单元格不变成数字单元格）。

from xlrd import XL_CELL_EMPTY, XL_CELL_TEXT, XL_CELL_NUMBER,
    XL_CELL_DATE, XL_CELL_BOOLEAN, XL_CELL_ERROR, open_workbook
from xlwt import Row, easyxf, Workbook

method_for_type = {
    XL_CELL_TEXT:    Row.set_cell_text,
    XL_CELL_NUMBER:  Row.set_cell_number,
    XL_CELL_DATE:    Row.set_cell_number,
    XL_CELL_ERROR:   Row.set_cell_error,
    XL_CELL_BOOLEAN: Row.set_cell_boolean,
    }

date_style = easyxf(num_format_str='yyyy-mm-dd')
other_style = easyxf(num_format_str='General')

def append_sheet(rsheet, wsheet, wrowx=0):
    for rrowx in xrange(rsheet.nrows):
        rrowvalues = rsheet.row_values(rrowx)
        wrow = wsheet.row(wrowx)
        for rcolx, rtype in enumerate(rsheet.row_types(rrowx)):
            if rtype == XL_CELL_EMPTY: continue
            wcolx = rcolx
            wmethod = method_for_type[rtype]
            wstyle = date_style if rtype == XL_CELL_DATE else other_style
            wmethod(wrow, wcolx, rrowvalues[rcolx], wstyle) 
        wrowx += 1
    return wrowx

if __name__ == '__main__':
    import sys, xlrd, xlwt, glob
    rdpattern, wtfname = sys.argv[1:3]
    wtbook = Workbook()
    wtsheet = wtbook.add_sheet('guff')
    outrowx = 0
    for rdfname in glob.glob(rdpattern):
        rdbook = open_workbook(rdfname)
        rdsheet = rdbook.sheet_by_index(0)
        outrowx = append_sheet(rdsheet, wtsheet, outrowx)
        print outrowx
    wtbook.save(wtfname)