Question: (Closed) up date the name of multiple files with list of IDs
gravatar for ahmedakhokhar
4.6 years ago by
ahmedakhokhar110 wrote:

I would have a folder of 8000 files with names


Another file (ID.txt) contains ids as

Phy000CVKM  YAL001C
Phy000CVKL  YAL002W

And I am trying to change files names with IDs in file(ID.txt) with python, what I am doing so far

f = os.listdir('/Users/admin/Desktop/folder')
for f in f:
    if f.endswith('.clean.fasta'):
        with open('ID.txt') as id:
             for i in id:
                 if ef[0]==i[0]:
                    print(os.rename(f, i[1]))

I am getting the following error

Traceback (most recent call last):
  File "<stdin>", line 8, in <module>
OSError: [Errno 2] No such file or directory

Please guide, where and what is wrong ?

(PS: only two files get renamed out of 8000plus)

tool basics python • 1.1k views
ADD COMMENTlink modified 4.6 years ago by jsgounot140 • written 4.6 years ago by ahmedakhokhar110

Hello ahmedakhokhar!

We believe that this post does not fit the main topic of this site.

This is not a bioinformatics question. This is a Python question that involves renaming files.

For this reason we have closed your question. This allows us to keep the site focused on the topics that the community can help with.

If you disagree please tell us why in a reply below, we'll be happy to talk about it.


ADD REPLYlink written 4.6 years ago by RamRS30k
gravatar for dschika
4.6 years ago by
European Union
dschika300 wrote:

Look at the error message: "OSError: [Errno 2] No such file or directory"

As you do not provide the whole code I assume the problem is that in your example the file names ended with 'raw.fasta', but in your python script you want to open '.clean.fasta'.

Furthermore, I would recommend you open ID.txt only once and save it into a dictionary. In your code you will open and parse ID.txt 8000 times.

ADD COMMENTlink written 4.6 years ago by dschika300

@dschika, there are two types of files in this folder, '.raw.fasta' and '.clean.fasta', I need to change the names of .clean.fasta files.

ADD REPLYlink written 4.6 years ago by ahmedakhokhar110
gravatar for jsgounot
4.6 years ago by
European Union
jsgounot140 wrote:

Your code can be better in many ways. As dschika said, you should read you ids file first and rename your files after that. Here is a code I didn't test but may help you.

import glob
import os

dic_ids = {}
with open("ID.txt") as f :
    for line in f :
        line = line.strip().split()
        dic_ids[line[0]] = line[1]

directory = "Users/admin/Desktop/folder/"
fnames = glob.glob(os.path.join(directory, "*.clean.fasta"))
for fname in fnames :
    bname = os.path.basename(fname)[:-12]
    id = dic_ids.get(bname, None)
    if not id :
    else :
        newname = os.path.join(directory, id + ".clean.fasta")
        os.rename(fname, newname)
ADD COMMENTlink written 4.6 years ago by jsgounot140
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