Renaming a single file in python - python

I'm trying to rename an audio file but I keep getting OSError: [Errno 2] No such file or directory.
In my program, each user has a directory that holds the users files. I obtain the path for each user by doing the following:
current_user_path = os.path.join(current_app.config['UPLOAD_FOLDER'], user.username)
/Users/johnsmith/Documents/pythonprojects/project/files/john
Now I want to obtain the path for the existing file I want to rename:
current_file_path = os.path.join(current_user_path,form.currentTitle.data)
/Users/johnsmith/Documents/pythonprojects/project/files/john/File1
The path for the rename file will be:
new_file_path = os.path.join(current_user_path, form.newTitle.data)
/Users/johnsmith/Documents/pythonprojects/project/files/john/One
Now I'm just running the rename command:
os.rename(current_file_path, new_file_path)

you can use os.rename for rename single file.
to avoid
OSError: [Errno 2] No such file or directory.
check if file exist or not.
here is the working example:
import os
src = "D:/test/Untitled003.wav"
dst = "D:/test/Audio001.wav"
if os.path.isfile(src):
os.rename(src, dst)

If the OS says there's no such file or directory, that's the gospel truth. You're making a lot of assumptions about where the file is, constructing a path to it, and renaming it. It's a safe bet there's no such file as the one named by current_file_path, or no directory to new_file_path.
Try os.stat(current_file_path), and similarly double-check the new file path with os.stat(os.posixpath.dirname(new_file_path)). Once you've got them right, os.rename will work if you've got permissions.

Try changing the current working directory to the one you want to work with. This code below should give you a simple walk through of how you should go about it:
import os
print (os.getcwd())
os.chdir(r"D:\Python\Example")
print (os.getcwd())
print ("start")
def rename_files():
file_list= os.listdir(r"D:\Python\Example")
print(file_list)
for file_name in file_list:
os.rename(file_name,file_name.translate(None,"0123456789")) rename_files()
print("stop")
print (os.getcwd())

Related

No such file or directory

I have faced error I had worked with this code before but now:
error
FileNotFoundError: [Errno 2] No such file or directory: 'pattern2_list.txt'
I use Python 3.8
import os
import shutil
with open ("pattern2_list.txt") as pattern_list_file:
pattern_data = pattern_list_file.read ()
pattern_list = pattern_data.split('\n')[:-1]
file_name_list = [file_name for file_name in os.listdir('2020')]
for file_name in file_name_list:
for pattern in pattern_list:
if pattern in file_name:
shutil.move("2020/" + file_name, "new_dir/"+ file_name)
Make sure that the file pattern2_list.txt
is present in the same working directory.
If you are in same directory and still it is not working then open a new folder and inside it create your python file with.pyextension.Inside same folder paste the pattern2_list.txtfile and then try to use it.
If still facing issue then check your python path in environment variable and if possible restart your system then open vs code.
Hope it will help you..

why does python say it cant find the path specified when it made the path?

I made this program yesterday because I am using py2exe, so what this program does is it zips up the folder created by py2exe and names it to app4export so I can send it to my friends. I also added in where if i already have a zip file called app4export then it deletes it before hand, it worked yesterday but now today I get the error
FileNotFoundError: [WinError 3] The system cannot find the path specified: 'C:\\Users\\severna\\Desktop\\Non_Test_Python_Files\\app4export'
but python made this location so I dont get why it cant find it later?
import os
import zipfile
import shutil
def zip(src, dst):
zf = zipfile.ZipFile("%s.zip" % (dst), "w", zipfile.ZIP_DEFLATED)
abs_src = os.path.abspath(src)
for dirname, subdirs, files in os.walk(src):
for filename in files:
absname = os.path.abspath(os.path.join(dirname, filename))
arcname = absname[len(abs_src) + 1:]
print('zipping %s as %s' % (os.path.join(dirname, filename),
arcname))
zf.write(absname, arcname)
zf.close()
source=r"C:\Users\severna\Desktop\Non_Test_Python_Files\dist"
destination=r"C:\Users\severna\Desktop\Non_Test_Python_Files\app4export"
shutil.rmtree(str(destination))
try:
zip(str(source), str(destination))
shutil.rmtree(str(source))
except FileNotFoundError:
print("Source cannot be zipped as it does not exist!")
Your code creates the file C:\Users\severna\Desktop\Non_Test_Python_Files\app4export.zip, but you try to remove the directory C:\Users\severna\Desktop\Non_Test_Python_Files\app4export
So just before the try-block you have
shutil.rmtree(str(destination))
which will throw an FileNotFoundError if the path do not exist. And when you hit that line of code, you still havent created the path. The reason it might have worked yesterday was that you mayby had that path.
after discussion with Cleared I found out that I needed i file extension because it was a file and shutil.rmtree doesnt remove files it removes directories so I need to use this code instead
os.remove(str(destination)+".zip")

FileNotFoundError: [WinError 2] The system cannot find the file specified:

import os
def rename(directory):
for name in os.listdir(directory):
print(name)
os.rename(name,"0"+name)
path = input("Enter the file path")
rename(path)
I want to rename every file in a certain directory so that it adds a 0 to the beginning of the file name, however when I try to run the code it comes up with this error:
(FileNotFoundError: [WinError 2] The system cannot find the file specified: '0.jpg' -> '00.jpg')
I'm sure that there is a file in there named 0.jpg and I'm not sure what the problem is.
As written you're looking for a file named 0.jpg in the working directory. You want to be looking in the directory you pass in.
So instead do:
os.rename(os.path.join(directory,name),
os.path.join(directory,'0'+name))
You cannot use an absolute path, unless your terminal is in that directory.
Hence, you can do as in the following:
import os
def rename(directory):
os.chdir(directory) # Changing to the directory you specified.
for name in os.listdir(directory):
print(name)
os.rename(name,"0"+name)
I am agreeing with mechanical_meat's answer that "filename" is used to mean the full/absolute path name. The below will also work.
os.rename((directory + name), (directory + '0' + name))

Recovering filenames from a folder in linux using python

I am trying to use the listdir function from the os module in python to recover a list of filenames from a particular folder.
here's the code:
import os
def rename_file():
# extract filenames from a folder
#for each filename, rename filename
list_of_files = os.listdir("/home/admin-pc/Downloads/prank/prank")
print (list_of_files)
I am getting the following error:
OSError: [Errno 2] No such file or directory:
it seems to give no trouble in windows, where you start your directory structure from the c drive.
how do i modify the code to work in linux?
The code is correct. There should be some error with the path you provided.
You could open a terminal and enter into the folder first. In the terminal, just key in pwd, then you could get the correct path.
Hope that works.
You could modify your function to exclude that error with check of existence of file/directory:
import os
def rename_file():
# extract filenames from a folder
#for each filename, rename filename
path_to_file = "/home/admin-pc/Downloads/prank/prank"
if os.exists(path_to_file):
list_of_files = os.listdir(path_to_file)
print (list_of_files)

How to correctly move Files with Python

I already read some useful infos here about moving files with Python. But those are not working on my machine. I use eclipse to run python and the program should move files within windows.
I used os.rename, shutil.move, shutil.copy and so on....
Here is my simple code.
import os
import shutil
source = os.listdir("C:/test/")
dest_dkfrontend = "C:/test1/"
for files in source:
if files.startswith("Detail"):
print('Files found ' + files)
shutil.copy(files, dest_dkfrontend)
else:
print('File name not matching')
I receive an error like:
with open(src, 'rb') as fsrc:
IOError: [Errno 2] No such file or directory:
Could you please help to address this?
first you have to check if your destination directory exists or not.
and shutil.copy requires 1st parameter as source of file with file name and 2nd parameter as destination of file where to copy with new file name.
try this.
import os
import shutil
source = os.listdir("C:/test/")
dest_dkfrontend = "C:/test1/"
if not os.path.exists(dest_dkfrontend):
os.makedirs(dest_dkfrontend)
for files in source:
if files.startswith("Detail"):
print('Files found ' + files)
shutil.copy(source+files, dest_dkfrontend+files)
else:
print('File name not matching')

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