Python: Rename files error

Question

I have a spimple script to rename all files in directory (ex. 475435_name.psd) by increasing its number lets say by 10.

But I get an error

Traceback (most recent call last):
  File "C:/Users/mstopienski/Desktop/Desktop/test.py", line 12, in <module>
    os.rename(filename, newname)
FileNotFoundError: [WinError 2] The system cannot find the file specified: '810858_Hero_ProjectHP_1600x487.psd' -> '810868_Hero_ProjectHP_1600x487.psd'

I dont want it to move files I just want the names changed.

import glob, os
path = input()
for filename in glob.glob(path):
    number = filename[0:6]
    name = filename[6:]
    x = int(number)+10
    newname = (str(x) + name)
    os.rename(filename, newname)

It tries to find the file in the current directory. This is probably not the same as where the file is located. So either provide full path or change current directory. — RvdK, Jan 09 '15 at 14:29
That being the case, probably changing the last line to: os.rename(os.path.join(path, filename), os.path.join(path, newname)) would do it? — LexyStardust, Jan 09 '15 at 14:44
The problem is that there is no second file. '810868_Hero_ProjectHP_1600x487.psd' is created of the first one It looks like he is lookin for this second file to overwrite? — MaciejPL, Jan 09 '15 at 14:46

LexyStardust · Answer 1 · 2015-01-09T15:01:39.763

0

As per the comment from @RvrK, the script is trying to target the working directory for the rename so I'm guessing chaning the last line to:

os.rename(os.path.join(path, filename), os.path.join(path, newname))

Should do it?

Edit:

Adding some 'safety' features:

import glob, os
path = input()
for filename in glob.glob(path):
    basename = os.path.basename(filename)
    number = basename [0:6]
    name = basename [6:]
    x = int(number)+10
    newname = (str(x) + name)
    os.rename(os.path.join(path, filename), os.path.join(path, newname))

edited Jan 09 '15 at 15:01

answered Jan 09 '15 at 14:47

LexyStardust

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5
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No, it did not help. I've got 6 files in directory but none of them is named as second from error. It is created from 1st one. – MaciejPL Jan 09 '15 at 14:48
Dont know, how to tell? – MaciejPL Jan 09 '15 at 14:53
Is the error message you get exactly the same as it was before? Copy and paste it here) – LexyStardust Jan 09 '15 at 14:54
Traceback (most recent call last): File "C:/Users/mstopienski/Desktop/Desktop/naming.py", line 7, in x = int(number)+10 ValueError: invalid literal for int() with base 10: 'c:\\Use' – MaciejPL Jan 09 '15 at 14:56
OK, so the error you're getting is quite different now... I'll update my answer... – LexyStardust Jan 09 '15 at 14:58

score 0 · Answer 2 · answered Jan 09 '15 at 14:56

0

You need over look the path you input and see if a file ends with '.psd', try this snippet code will help:

import os
path = raw_input()
for filename in os.walk(path):
  for ele in filename:
    if type(ele) == type([]) and len(ele)!=0:
      for every_file in ele:
        if every_file.endswith('psd'):

           number = every_file[0:6]
           name = every_file[6:]
           x = int(number)+10
           newname = (str(x) + name)
           os.rename(os.path.join(path, every_file), os.path.join(path, newname))

I tied put the script and your psd files in the same path input "./" it works.

answered Jan 09 '15 at 14:56

lqhcpsgbl

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Thanks but it is not always a psd file. – MaciejPL Jan 09 '15 at 14:57
how to change to every extension file? – MaciejPL Jan 09 '15 at 15:12
I don't know that if your files are all like six-numbers and something else,if they are, just try: int(every_file[0:6]). If they are not, you should find a way by your own.Good luck. – lqhcpsgbl Jan 09 '15 at 15:15

Python: Rename files error

2 Answers2