Rename Files in a Directory

Question

I have 400 files in a directory (with .png extensions). They start with the name 005.png and go up to 395.png.

I want to rename them using os.rename:

os.rename(006.png,005.png)

In other words, I want to shift all the numbers down one, renaming the file 005.png to 004.png and renaming 395.png to 394.png, and so on.

I don't want to do this manually, because it would take too long:

os.rename(005.png,004.png) os.rename(006.png,005.png) ...

How can I do this simply? I am using the s60 2nd edition FP3.

Thanks in advance!

"Please give me a code" — we don't do that here. Show us what you've tried and where you've run into problems, and we will try to help. We won't write your code for you. — msw
– msw, Commented Aug 19, 2012 at 13:57

slallum · Accepted Answer · 2012-08-19 14:00:34Z

You can use a simple loop:

for i in xrange(4, 396): os.rename(str(i).zfill(3) + ".png", str(i-1).zfill(3) + ".png"))

and that's about it :)

Pierre GM · Accepted Answer · 2012-08-19 14:13:59Z

A loop is the easiest indeed. As an alternative to str(i).zfill(3) + ".png", you could use

template = "{0:03d}.png" for i in range(4, 396): os.rename(template.format(i), template.format(i-1))

Hamoudaq · Accepted Answer · 2012-08-21 17:54:39Z

1

import os path = r"C:\your_dir"#i've added r for skipping slash , case you are in windows os.chdir(path)#well here were the problem , before edit you were in different directory and you want edit file which is in another directory , so you have to change your directory to the same path you wanted to change some of it's file files = os.listdir(path) for file in files: name,ext = file.split('.') edited_name=str(int(name)-1) os.rename(file,edited_name+'.'+ext)

hopefully that's what are you looking up for

edited Aug 21, 2012 at 17:54

answered Aug 19, 2012 at 14:29

Hamoudaq

1,4984 gold badges23 silver badges42 bronze badges

4 Comments

Lhady Spark Over a year ago

I try your code and python say's "os.rename(file,newName) TypeError: coercing to Unicode: need string or buffer, int found >>>"

Lhady Spark Over a year ago

Sir .. it says >>> ===== RESTART ===== >>> Traceback (most recent call last): File "ped.py", line 1061, in run_click File "D:\Ped.temp\Unnamed1.py", line 7, in ? os.rename("file","newName") OSError: [Errno 2] No such file or directory >>> why ? I put the exact file path on it !

Hamoudaq Over a year ago

i've make the final edit , and i'm sure 100% it's going to work :)

Lhady Spark Over a year ago

Sir .. Thankyou for your reply ! Your code works .. But my 3 digit file name becames 2 .. File: 005.png became 05.png .. i want it to be: 005.png become 004.png and so on .. 005.png to 004.png 006.png to 005.png and so on .. up to 395.png became 394.png ! Thankyou very much ..

Collectives™ on Stack Overflow

Rename Files in a Directory

3 Answers 3

Comments

Comments

4 Comments

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

Comments

Comments

4 Comments

Related