[Bug]: PermissionError on cleanup

Author: GigahawkCreated Apr 13, 2026Updated Apr 13, 2026

Labelsbug

What happened?

Calling cookiecutter from this application like so:

https://github.com/inventree/plugin-creator/blob/a5943ad1063e36839e4d7bfb92c2052bf29ed173/plugin_creator/cli.py#L197-L203

However, when cookiecutter tries to delete the directory under /tmp I get:

? DevOps support (CI/CD)? GitHub Actions
- output: /home/jasper/repos/InventreeDigikeyPlugin
Traceback (most recent call last):
  File "/nix/store/pzdalg368npikvpq4ncz2saxnz19v53k-python3-3.13.12/lib/python3.13/shutil.py", line 696, in _rmtree_safe_fd
    os.unlink(entry.name, dir_fd=topfd)
    ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
PermissionError: [Errno 13] Permission denied: 'cookiecutter.json'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/nix/store/pzdalg368npikvpq4ncz2saxnz19v53k-python3-3.13.12/lib/python3.13/shutil.py", line 700, in _rmtree_safe_fd
    onexc(os.unlink, fullname, err)
    ~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/nix/store/pzdalg368npikvpq4ncz2saxnz19v53k-python3-3.13.12/lib/python3.13/shutil.py", line 754, in onexc
    return onerror(func, path, exc_info)
  File "/nix/store/0vlwxl4rv0dhyxq1dq8h5dv23hr9bvh9-python3.13-cookiecutter-2.6.0/lib/python3.13/site-packages/cookiecutter/utils.py", line 26, in force_delete
    func(path)
    ~~~~^^^^^^
PermissionError: [Errno 13] Permission denied: PosixPath('/tmp/cookiecuttertggyjd_7/template')

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/nix/store/n4navmfkzzfbxidixszjggqfwcfzrjxp-inventree-1.15.1/bin/.create-inventree-plugin-wrapped", line 9, in <module>
    sys.exit(main())
             ~~~~^^
  File "/nix/store/n4navmfkzzfbxidixszjggqfwcfzrjxp-inventree-1.15.1/lib/python3.13/site-packages/plugin_creator/cli.py", line 197, in main
    cookiecutter(
    ~~~~~~~~~~~~^
        src_path,
        ^^^^^^^^^
    ...<3 lines>...
        overwrite_if_exists=True,
        ^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/nix/store/0vlwxl4rv0dhyxq1dq8h5dv23hr9bvh9-python3.13-cookiecutter-2.6.0/lib/python3.13/site-packages/cookiecutter/main.py", line 194, in cookiecutter
    rmtree(repo_dir)
    ~~~~~~^^^^^^^^^^
  File "/nix/store/0vlwxl4rv0dhyxq1dq8h5dv23hr9bvh9-python3.13-cookiecutter-2.6.0/lib/python3.13/site-packages/cookiecutter/utils.py", line 34, in rmtree
    shutil.rmtree(path, onerror=force_delete)
    ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/nix/store/pzdalg368npikvpq4ncz2saxnz19v53k-python3-3.13.12/lib/python3.13/shutil.py", line 763, in rmtree
    _rmtree_safe_fd(stack, onexc)
    ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^
  File "/nix/store/pzdalg368npikvpq4ncz2saxnz19v53k-python3-3.13.12/lib/python3.13/shutil.py", line 707, in _rmtree_safe_fd
    onexc(func, path, err)
    ~~~~~^^^^^^^^^^^^^^^^^
  File "/nix/store/pzdalg368npikvpq4ncz2saxnz19v53k-python3-3.13.12/lib/python3.13/shutil.py", line 754, in onexc
    return onerror(func, path, exc_info)
  File "/nix/store/0vlwxl4rv0dhyxq1dq8h5dv23hr9bvh9-python3.13-cookiecutter-2.6.0/lib/python3.13/site-packages/cookiecutter/utils.py", line 26, in force_delete
    func(path)
    ~~~~^^^^^^
PermissionError: [Errno 13] Permission denied: '/tmp/cookiecuttertggyjd_7/template'

Looking at the directory the permissions are indeed odd:

jasper@arios:/tmp/ > ls -al ./cookiecuttertggyjd_7
total 40
drwx------  3 jasper users  4096 Apr 12 21:40 .
drwxrwxrwt 79 root   root  28672 Apr 12 21:55 ..
d-w-------  4 jasper users  4096 Dec 31  1969 template

My guess is this has something to do with the template files being stored inside the nix store which is readonly, but the permissions don't match:

jasper@arios:~/repos/nixpkgs/ > ls -al result/lib/python3.13/site-packages/plugin_creator
total 52
dr-xr-xr-x 4 root root 4096 Dec 31  1969 .
dr-xr-xr-x 4 root root 4096 Dec 31  1969 ..
-r--r--r-- 1 root root 6180 Dec 31  1969 cli.py
-r--r--r-- 1 root root 1400 Dec 31  1969 config.py
-r--r--r-- 1 root root 1559 Dec 31  1969 devops.py
-r--r--r-- 1 root root 3183 Dec 31  1969 frontend.py
-r--r--r-- 1 root root 1156 Dec 31  1969 helpers.py
-r--r--r-- 1 root root   59 Dec 31  1969 __init__.py
-r--r--r-- 1 root root 1998 Dec 31  1969 mixins.py
dr-xr-xr-x 2 root root 4096 Dec 31  1969 __pycache__
dr-xr-xr-x 4 root root 4096 Dec 31  1969 template
-r--r--r-- 1 root root 1117 Dec 31  1969 validators.py

Steps to reproduce

Issue is likely specific to nix.

Checkout https://github.com/NixOS/nixpkgs/pull/509455
Run nix build .#inventree-plugin-creator
Run ./result/bin/create-inventree-plugin

Template

https://github.com/inventree/plugin-creator/tree/main/plugin_creator/template

Don't think this is related, since the failure happens at cleanup.

Output / traceback

bash

Cookiecutter version

2.6.0

Python version

3.13

Operating system

Linux

How did you install Cookiecutter?

Other (specify in description)

Additional context

cookiecutter installed via nixpkgs

Source: cookiecutter/cookiecutter

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