在python中如何更改csv中的日期格式? [英] In python how to change date format in a csv?

问题描述

我正在尝试使用python将日期格式从 30-Jan-02 更改为 30.Jan.2002 在csv文件中的第二位置.我尝试了几件事，但对字符串和字节的兼容性感到困惑.

I am trying to change the format of dates from 30-Jan-02 to 30.Jan.2002 occurring in second position in a csv file using python. I tried several things but I am confused with strings and bytes comptability.

import os 
import csv 


from datetime import datetime
import sys
from tempfile import NamedTemporaryFile

with open("Filenamecsv",'r') as csvfile, NamedTemporaryFile(dir="path/parh",delete=False) as temp:
    w = csv.writer(temp)
    r = csv.reader(csvfile)
    for row in r:
        dt = row[2].split("-")
        row[2] = "{}.{}.{}".format(row[-1],row[1],row[0])
        w.writerow(row)
move(temp.name,"Filename.csv")

推荐答案

您还可以使用 datetime

In [25]: import datetime

In [26]: dt = datetime.datetime.strptime("30-Jan-02", '%d-%b-%y').strftime('%d.%b.%Y')

In [27]: dt
Out[27]: '30.Jan.2002'  

这篇关于在python中如何更改csv中的日期格式?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！