你可以使用os。系统调用终端来完成任务:

os.system('mv oldfile newfile')

操作系统。重命名(旧的,新的)

这可以在Python文档中找到:http://docs.python.org/library/os.html

使用os.rename:

import os

os.rename('a.txt', 'b.kml')

用法:

os.rename('from.extension.whatever','to.another.extension')

import os

# Set the path
path = 'a\\b\\c'  
# save current working directory
saved_cwd = os.getcwd()
# change your cwd to the directory which contains files
os.chdir(path)
os.rename('a.txt', 'b.klm')
# moving back to the directory you were in 
os.chdir(saved_cwd)

使用os.rename。但是你必须把两个文件的完整路径传递给函数。如果我的桌面上有一个。txt文件那么我就会这样做，而且我也必须给出一个完整的重命名文件。

os.rename('C:\\Users\\Desktop\\a.txt', 'C:\\Users\\Desktop\\b.kml')

如果你正在使用Windows，你想重命名文件夹中的1000s文件，然后: 您可以使用下面的代码。(Python3)

import os

path = os.chdir(input("Enter the path of the Your Image Folder :  ")) #Here put the path of your folder where your images are stored

image_name = input("Enter your Image name : ") #Here, enter the name you want your images to have

i = 0

for file in os.listdir(path):

    new_file_name = image_name+"_" + str(i) + ".jpg" #here you can change the extention of your renmamed file.
    os.rename(file,new_file_name)

    i = i + 1

input("Renamed all Images!!")