python pands实现execl转csv 并修改csv指定列的方法

如下所示：

# -*- coding: utf-8 -*-
import os 
import pandas as pd
import numpy as np
#from os import sys

def appendstr(strs):
 return "boq" + strs

def addboq(dirs, csv_file):
 data = pd.read_csv(os.path.join(dirs, csv_file), encoding="gbk")
 data = data[data[u"boq条码"] != 'none']
 data[u"boq条码"] = data[u"boq条码"].astype(np.str)
 data[u"boq条码"] = data[u"boq条码"].apply(appendstr, 1)
 data.to_csv(os.path.join(dirs, csv_file), index=false, encoding="gbk")

def execl2csvbypandas(dirs, excel_file, addstr):
 newdir = os.path.join(dirs, "csvdir")
 if not os.path.isdir(newdir):
  os.makedirs(newdir)
 filename = os.path.splitext(excel_file)
 data_xls = pd.read_excel(os.path.join(dirs, excel_file), 'sheet1', index_col=0)
 csvname = os.path.join(newdir, filename[0].join(['sheet1', '.csv']))
 data_xls.to_csv(csvname, encoding='gbk')
 if true == addstr:
  addboq(newdir, csvname)

def procexeclfiles(arg, dirs, files):
 print arg
 for f in files:
  file_path = os.path.join(dirs, f)
  if os.path.isfile(file_path):
   print f
   execl2csvbypandas(dirs, f, arg)
 print "end...."

 
if __name__ == "__main__":
 #遍历目录，并把改目录下的execl转为csv,然后存入该目录下csvdir目录下,传参数true时，是给csv中boq条码列添加boq字符串，一般为false
 os.path.walk(r"c:\users\desktop\test", procexeclfiles, (true))

以上这篇python pands实现execl转csv 并修改csv指定列的方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。