如何用python提取Excel中指定列名的数据

#coding=utf-8
import xlrd,chardet,traceback

#根据列名获取相应序号
def getColumnIndex(table,columnName):
    columnIndex=None 

    for i in range(table.ncols):

        if(table.cell_value(0,i)==columnName):
            columnIndex=i
            break
    return columnIndex

#根据Excel中sheet名称读取数据
def readExcelDataByName(fileName,sheetName):

    table=None 

    try:
        data=xlrd.open_workbook(fileName)
        table=data.sheet_by_name(sheetName)
    except Exception:
        pass

    return table

if __name__=='__main__':
    #example
    xlsfile=r'/Users//Desktop/python/房源清单-(截止1031）.xlsx'
    xlssheet='Sheet1'
    table=readExcelDataByName(xlsfile,xlssheet)
    #获取第一行的值
    chanpinleixing=table.cell_value(1,getColumnIndex(table,'产品类型'))
    fangyuanmingcheng=table.cell_value(1,getColumnIndex(table,'房源名称'))

    print(u'产品类型为：%s'%(chanpinleixing))
    print(u'房源名称为：%s'%(fangyuanmingcheng))