Errno 13 permission denied python ошибка

asked Apr 5, 2016 at 18:54

This happens if you are trying to open a file, but your path is a folder.

This can happen easily by mistake.

To defend against that, use:

import os

path = r"my/path/to/file.txt"
assert os.path.isfile(path)
with open(path, "r") as f:
    pass

The assertion will fail if the path is actually of a folder.

answered Jun 7, 2020 at 11:14

There are basically three main methods of achieving administrator execution privileges on Windows.

1. Running as admin from cmd.exe
2. Creating a shortcut to execute the file with elevated privileges
3. Changing the permissions on the python executable (Not recommended)

A) Running cmd.exe as and admin

Since in Windows there is no sudo command you have to run the terminal (cmd.exe) as an administrator to achieve to level of permissions equivalent to sudo. You can do this two ways:

1. Manually

   • Find cmd.exe in C:\Windows\system32
   • Right-click on it
   • Select Run as Administrator
   • It will then open the command prompt in the directory C:\Windows\system32
   • Travel to your project directory
   • Run your program

2. Via key shortcuts

   • Press the windows key (between alt and ctrl usually) + X.
   • A small pop-up list containing various administrator tasks will appear.
   • Select Command Prompt (Admin)
   • Travel to your project directory
   • Run your program

By doing that you are running as Admin so this problem should not persist

B) Creating shortcut with elevated privileges

1. Create a shortcut for python.exe
2. Righ-click the shortcut and select Properties
3. Change the shortcut target into something like "C:\path_to\python.exe" C:\path_to\your_script.py"
4. Click «advanced» in the property panel of the shortcut, and click the option «run as administrator»

Answer contributed by delphifirst in this question

C) Changing the permissions on the python executable (Not recommended)

This is a possibility but I highly discourage you from doing so.

It just involves finding the python executable and setting it to run as administrator every time. Can and probably will cause problems with things like file creation (they will be admin only) or possibly modules that require NOT being an admin to run.

answered Feb 7, 2019 at 3:39

In my case the problem was that I hid the file (The file had hidden atribute):
How to deal with the problem in python:

Edit: highlight the unsafe methods, thank you d33tah

# Use the method nr 1, nr 2 is vulnerable

# 1
# and just to let you know there is also this way
# so you don't need to import os
import subprocess
subprocess.check_call(["attrib", "-H", _path])


# Below one is unsafe meaning that if you don't control the filePath variable
# there is a possibility to make it so that a malicious code would be executed

import os

# This is how to hide the file
os.system(f"attrib +h {filePath}")
file_ = open(filePath, "wb")
>>> PermissionError <<<


# and this is how to show it again making the file writable again:
os.system(f"attrib -h {filePath}")
file_ = open(filePath, "wb")
# This works

answered Jul 22, 2020 at 21:19

You can run CMD as Administrator and change the permission of the directory using cacls.exe. For example:

cacls.exe c: /t /e /g everyone:F # means everyone can totally control the C: disc

answered Mar 10, 2020 at 3:41

answered Feb 26, 2019 at 11:41

answered Sep 6, 2021 at 5:07

The most common reason for this could be, permission to the folder/file for that particular user.

Grant write permissions to the directory where you want to write files. You can do this by changing the ownership or permissions of the directory using the chmod or chown commands.

Example:

# Change ownership of the directory to the current user
sudo chown -R $USER:$USER /path/to/directory

# Grant write permissions to the directory
sudo chmod -R 777 /path/to/directory

answered May 25 at 15:37

I faced a similar problem. I am using Anaconda on windows and I resolved it as follows:
1) search for «Anaconda prompt» from the start menu
2) Right click and select «Run as administrator»
3) The follow the installation steps…

This takes care of the permission issues

answered Sep 6, 2018 at 14:38

Here is how I encountered the error:

import os

path = input("Input file path: ")

name, ext = os.path.basename(path).rsplit('.', 1)
dire = os.path.dirname(path)

with open(f"{dire}\\{name} temp.{ext}", 'wb') as file:
    pass

It works great if the user inputs a file path with more than one element, like

C:\\Users\\Name\\Desktop\\Folder

But I thought that it would work with an input like

file.txt

as long as file.txt is in the same directory of the python file. But nope, it gave me that error, and I realized that the correct input should’ve been

.\\file.txt

answered Dec 18, 2020 at 21:40

NooneNoone

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This error actually also comes when using keras.preprocessing.image so for example:

img = keras.preprocessing.image.load_img(folder_path, target_size=image_size)

will throw the permission error. Strangely enough though, the problem is solved if you first import the library: from keras.preprocessing import image and only then use it. Like so:

img = image.load_img(img_path, target_size=(180,180))