csv和excel互转

Python csv转换为excel学习笔记：

openpyxl模块须要安装pip install openpyxl

import openpyxl
import csv

'''读取csv文件写入excel表格'''

#建立工做簿对象
work_book = openpyxl.Workbook()

#建立sheet
work_sheet = work_book.create_sheet(title=u"cpu和内存")

#打开csv文件，没有异常捕获，没有定义成函数,作成模块更好
csvfile = open('20170615.csv','rb')

#获取csv.reader
lines = csv.reader(csvfile)

#row
row = 1

#sheet第一行，就叫他标题吧
title_list=[u'采集时间',u'主机',u'CPU使用率（%）',u'MEM使用率（%）']

#写入第一行，标题
for i in range(1,title_len+1):
    work_sheet.cell(row = row, column = i).value = title_list[i-1]

#从第二行开始写入从csv读取的内容
for line in lines:
    lin = 1
    for i in line:
	    work_sheet.cell(row = row +1, column = lin).value = i
        lin += 1
    row += 1

#关闭文件
csvfile.close()

#保存工做表
work_book.save('20170615_cpu.xlsx')

 

下面是一个Excel转csv的代码，网上借鉴，能够直接做为模块使用：

# -*- coding: utf-8 -*-  
import xlrd  
import csv  
from os import sys  
  
  
def csv_from_excel(excel_file):  
    workbook = xlrd.open_workbook(excel_file)  
    all_worksheets = workbook.sheet_names()
    for worksheet_name in all_worksheets: 
        worksheet = workbook.sheet_by_name(worksheet_name)  
        your_csv_file = open(''.join([worksheet_name,'.csv']), 'wb')  
        wr = csv.writer(your_csv_file, quoting=csv.QUOTE_ALL)  
  
  
        for rownum in xrange(worksheet.nrows):  
            wr.writerow([unicode(entry).encode("utf-8") for entry in worksheet.row_values(rownum)])  
        your_csv_file.close()  
  
  
if __name__ == "__main__":  
    csv_from_excel(sys.argv[1])