# How to rename a file using Python

## The Question :

410 people think this question is useful

I want to change a.txt to b.kml.

662 people think this answer is useful
import os

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



86 people think this answer is useful

File may be inside a directory, in that case specify the path:

import os
old_file = os.path.join("directory", "a.txt")
new_file = os.path.join("directory", "b.kml")
os.rename(old_file, new_file)



57 people think this answer is useful
import shutil

shutil.move('a.txt', 'b.kml')



This will work to rename or move a file.

46 people think this answer is useful

As of Python 3.4 one can use the pathlib module to solve this.

If you happen to be on an older version, you can use the backported version found here

Let’s assume you are not in the root path (just to add a bit of difficulty to it) you want to rename, and have to provide a full path, we can look at this:

some_path = 'a/b/c/the_file.extension'



So, you can take your path and create a Path object out of it:

from pathlib import Path
p = Path(some_path)



Just to provide some information around this object we have now, we can extract things out of it. For example, if for whatever reason we want to rename the file by modifying the filename from the_file to the_file_1, then we can get the filename part:

name_without_extension = p.stem



And still hold the extension in hand as well:

ext = p.suffix



We can perform our modification with a simple string manipulation:

Python 3.6 and greater make use of f-strings!

new_file_name = f"{name_without_extension}_1"



Otherwise:

new_file_name = "{}_{}".format(name_without_extension, 1)



And now we can perform our rename by calling the rename method on the path object we created and appending the ext to complete the proper rename structure we want:

p.rename(Path(p.parent, new_file_name + ext))



More shortly to showcase its simplicity:

Python 3.6+:

from pathlib import Path
p = Path(some_path)
p.rename(Path(p.parent, f"{p.stem}_1_{p.suffix}"))



Versions less than Python 3.6 use the string format method instead:

from pathlib import Path
p = Path(some_path)
p.rename(Path(p.parent, "{}_{}_{}".format(p.stem, 1, p.suffix))



20 people think this answer is useful

os.rename(old, new)

This is found in the Python docs: http://docs.python.org/library/os.html

10 people think this answer is useful

Use os.rename. But you have to pass full path of both files to the function. If I have a file a.txt on my desktop so I will do and also I have to give full of renamed file too.

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



4 people think this answer is useful
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)



0 people think this answer is useful
import shutil
import os

files = os.listdir("./pics/")

for key in range(0, len(files)):
print files[key]
shutil.move("./pics/" + files[key],"./pics/img" + str(key) + ".jpeg")



This should do it. python 3+

0 people think this answer is useful

If you are Using Windows and you want to rename your 1000s of files in a folder then: You can use the below code. (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!!")



0 people think this answer is useful

Using the Pathlib library’s Path.rename instead of os.rename:

import pathlib

original_path = pathlib.Path('a.txt')
new_path = original_path.rename('b.kml')



0 people think this answer is useful

os.chdir(r”D:\Folder1\Folder2″)
os.rename(src,dst)
#src and dst should be inside Folder2

-1 people think this answer is useful
import os
import re
from pathlib import Path

for f in os.listdir(training_data_dir2):
for file in os.listdir( training_data_dir2 + '/' + f):
oldfile= Path(training_data_dir2 + '/' + f + '/' + file)
newfile = Path(training_data_dir2 + '/' + f + '/' + file[49:])
p=oldfile
p.rename(newfile)



os.system('mv oldfile newfile')