使用python检测空白Excel单元格

Question

我编写了一个python代码，用于将数据从多个excel文件转换为单个csv文件，但它无法正常工作。我在以下程序中尝试使用XL_CELL_EMPTY或XL_CELL_BLANK代替None。但没有任何工作。它给出了以下错误

Traceback (most recent call last):
  File "Excel_to_CSV_1.py", line 35, in <module>
    while Sh_B1.cell(i,j).value  != None : 
  File "/usr/lib/pymodules/python2.7/xlrd/sheet.py", line 245, in cell
    self._cell_types[rowx][colx],
IndexError: array index out of range

这是该计划：

import xlrd
import os.path
from xlrd import open_workbook,empty_cell
book1 = xlrd.open_workbook("Excel_1.xls")
Sh_B1 = book1.sheet_by_index(0)
book2 = xlrd.open_workbook("Excel_2.xls")
Sh_B2 = book2.sheet_by_index(0)
i = 1
j = 1 
file = open("Output.txt", "w")
while Sh_B1.cell(i,j).value != None :
    while Sh_B1.cell(i,j).value  != None : 
        D1 = Sh_B1.cell(i,j).value
        D2 = Sh_B2.cell(i,j).value
        DB1 = str(D1)+ "," + str(D2)
        file.write("".join(DB1+ "\n"))
        j = j + 1
    j = 1
    print "j=1" 
    i = i + 1
file.close

我哪里错了？

Answer 1

Sheet的{​​{1}}对象具有xlrd和nrows个属性，可以迭代单元格。

ncols