python实现表格合并

应用场景：有一个文件夹存放着表结构相同的大量表格，现将所有表格合并，表头保留

代码实现：

import os

import os.path

import xdrlib ,sys

import xlrd

import csv

rootdir="e:\min5\sh"

csvfile=file('bigdata.csv','ab+')

实现excel转换成csv，并且进行合并

>> def writeSingleData2Csv(file,colnameindex=0):

csvFile = 'bigdata.csv'

fileStream = open(csvFile,'ab+')

print csvFile

write = csv.writer(fileStream)

data=loadSingleExcel(file)

header = readHeader(data)

writeHead2csv(header,write)

nrows = data.nrows

for rownum in range(1,nrows):

rowdata = data.row_values(rownum)

writeData2csv(rowdata,write)

fileStream.close()

>>> def writeAllData2Csv(path='e:\min5\sh'):

for parent,dirnames,filenames in os.walk(path):

for filename in filenames:

writeSingleData2Csv(path+'\\'+filename,colnameindex=0)

def loadSingleExcel(file=“”):

try:

data=xlrd.open_workbook(file).sheets()[0]

return data

except Exception,e:

print str(e)

def readHeader(data,colnameindex=0):

head=[]

head=data.row_values(0)

return head

def writeHead2csv(data,write):

write.writerow(data)

def writeData2csv(data,write):

write.writerow(data)

执行：writeAllData2Csv（）

注：python的缩进代表着特别含义