用python来自动生成excel数据文件。python处理excel文件主要是第三方模块库xlrd、xlwt、xluntils和pyExcelerator,除此之外,python处理excel还可以用win32com和openpyxl模块。

方法一:

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# 读取excel数据
# 小罗的需求,取第二行以下的数据,然后取每行前13列的数据
import xlrd
data = xlrd.open_workbook('test.xls') # 打开xls文件
table = data.sheets()[0] # 打开第一张表
nrows = table.nrows # 获取表的行数
for i in range(nrows): # 循环逐行打印
   if i == 0: # 跳过第一行
      continue
   print table.row_values(i)[:13] # 取前十三列

方法二:test_xlrd.py
使用xlrd读取文件,使用xlwt生成Excel文件(可以控制Excel中单元格的格式)。但是用xlrd读取excel是不能对其进行操作的;而xlwt生成excel文件是不能在已有的excel文件基础上进行修改的,如需要修改文件就要使用xluntils模块。pyExcelerator模块与xlwt类似,也可以用来生成excel文件。

#coding=utf-8
#######################################################
#filename:test_xlrd.py
#author:defias
#date:xxxx-xx-xx
#function:读excel文件中的数据
#######################################################
import xlrd
#打开一个workbook
workbook = xlrd.open_workbook('E:\\Code\\Python\\testdata.xls')
#抓取所有sheet页的名称
worksheets = workbook.sheet_names()
print('worksheets is %s' %worksheets)
#定位到sheet1
worksheet1 = workbook.sheet_by_name(u'Sheet1')
"""
#通过索引顺序获取
worksheet1 = workbook.sheets()[0]
#或
worksheet1 = workbook.sheet_by_index(0)
"""
"""
#遍历所有sheet对象
for worksheet_name in worksheets:
worksheet = workbook.sheet_by_name(worksheet_name)
"""
#遍历sheet1中所有行row
num_rows = worksheet1.nrows
for curr_row in range(num_rows):
row = worksheet1.row_values(curr_row)
print('row%s is %s' %(curr_row,row))
#遍历sheet1中所有列col
num_cols = worksheet1.ncols
for curr_col in range(num_cols):
col = worksheet1.col_values(curr_col)
print('col%s is %s' %(curr_col,col))
#遍历sheet1中所有单元格cell
for rown in range(num_rows):
for coln in range(num_cols):
cell = worksheet1.cell_value(rown,coln)
print cell
"""
#其他写法:
cell = worksheet1.cell(rown,coln).value
print cell
#或
cell = worksheet1.row(rown)[coln].value
print cell
#或
cell = worksheet1.col(coln)[rown].value
print cell
#获取单元格中值的类型,类型 0 empty,1 string, 2 number, 3 date, 4 boolean, 5 error
cell_type = worksheet1.cell_type(rown,coln)
print cell_type
"""

test_xlwt.py

#coding=utf-8
#######################################################
#filename:test_xlwt.py
#author:defias
#date:xxxx-xx-xx
#function:新建excel文件并写入数据
#######################################################
import xlwt
#创建workbook和sheet对象
workbook = xlwt.Workbook() #注意Workbook的开头W要大写
sheet1 = workbook.add_sheet('sheet1',cell_overwrite_ok=True)
sheet2 = workbook.add_sheet('sheet2',cell_overwrite_ok=True)
#向sheet页中写入数据
sheet1.write(0,0,'this should overwrite1')
sheet1.write(0,1,'aaaaaaaaaaaa')
sheet2.write(0,0,'this should overwrite2')
sheet2.write(1,2,'bbbbbbbbbbbbb')
"""
#-----------使用样式-----------------------------------
#初始化样式
style = xlwt.XFStyle() 
#为样式创建字体
font = xlwt.Font()
font.name = 'Times New Roman'
font.bold = True
#设置样式的字体
style.font = font
#使用样式
sheet.write(0,1,'some bold Times text',style)
"""
#保存该excel文件,有同名文件时直接覆盖
workbook.save('E:\\Code\\Python\\test2.xls')
print '创建excel文件完成!'

我的例子:

def read_panel_snps(input_file,output_file):
    workbook = xlrd.open_workbook(input_file)
    writebook = xlwt.Workbook()


    worksheets = workbook.sheet_names()
    for i in range(len(worksheets)):
        worksheet1= workbook.sheet_by_name(worksheets[i])
        # sheet_name = "sheet"+str()
        sheet_name = writebook.add_sheet("%s"%worksheets[i],cell_overwrite_ok=True)

        num_rows = worksheet1.nrows
        num_cols = worksheet1.ncols

        # for cur_row in range(num_rows):
        #     row = worksheet1.row_values(cur_row)
        #     print row
        #
        # for cur_col in range(num_cols):
        #     row = worksheet1.col_values(cur_col)
        #     print row

        for rown in range(num_rows):
            for coln in range(num_cols):
                cell = worksheet1.cell_value(rown,coln)
                gw_id,mutation = transform_id(cell)
                if mutation != "!":
                    sheet_name.write(rown,coln,gw_id)
                else:
                    sheet_name.write(rown,coln,cell)
                # print cell


        # print worksheets
    writebook.save("%s"%output_file)

参考资料:
http://www.jb51.net/article/77626.htm

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