#31945: PermissionError due to unjustified attempt to access '/usr' when using
manage.py after updating from 3.0.8 to 3.1.0
-----------------------------------------+---------------------------------
Reporter: tytusd | Owner: nobody
Type: Bug | Status: new
Component: Uncategorized | Version: 3.1
Severity: Normal | Keywords: PermissionError
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
-----------------------------------------+---------------------------------
After updating Django from 3.0.8 to 3.1.0 it became unusable - I cannot
call any manage.py management command in the production environment, where
the user does not have root access and has very limited access to the /usr
directory (it is a managed environment). Normally everything works fine,
as Django projects run within virtual environments. Unfortunately, after
the update, the Django code clearly attempts to access /usr directory
(even though it is running inside of a virtual environment located
elsewhere, within the user home directory. After downgrading back to 3.0.8
everything works fine again.
Stack trace below:
{{{
(web) [XYZ@s39]:<~/domains/XXX/public_python>$ python manage.py migrate
Traceback (most recent call last):
File "manage.py", line 21, in <module>
main()
File "manage.py", line 17, in main
execute_from_command_line(sys.argv)
File "/usr/home/XYZ/.virtualenvs/web/lib/python3.6/site-
packages/django/core/management/__init__.py", line 401, in
execute_from_command_line
utility.execute()
File "/usr/home/XYZ/.virtualenvs/web/lib/python3.6/site-
packages/django/core/management/__init__.py", line 377, in execute
django.setup()
File "/usr/home/XYZ/.virtualenvs/web/lib/python3.6/site-
packages/django/__init__.py", line 24, in setup
apps.populate(settings.INSTALLED_APPS)
File "/usr/home/XYZ/.virtualenvs/web/lib/python3.6/site-
packages/django/apps/registry.py", line 114, in populate
app_config.import_models()
File "/usr/home/XYZ/.virtualenvs/web/lib/python3.6/site-
packages/django/apps/config.py", line 211, in import_models
self.models_module = import_module(models_module_name)
File
"/usr/home/XYZ/.virtualenvs/web/lib/python3.6/importlib/__init__.py", line
126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 994, in _gcd_import
File "<frozen importlib._bootstrap>", line 971, in _find_and_load
File "<frozen importlib._bootstrap>", line 955, in
_find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 678, in exec_module
File "<frozen importlib._bootstrap>", line 219, in
_call_with_frames_removed
File "/usr/home/XYZ/.virtualenvs/web/lib/python3.6/site-
packages/django/contrib/auth/models.py", line 2, in <module>
from django.contrib.auth.base_user import AbstractBaseUser,
BaseUserManager
File "/usr/home/XYZ/.virtualenvs/web/lib/python3.6/site-
packages/django/contrib/auth/base_user.py", line 8, in <module>
from django.contrib.auth import password_validation
File "/usr/home/XYZ/.virtualenvs/web/lib/python3.6/site-
packages/django/contrib/auth/password_validation.py", line 160, in
<module>
class CommonPasswordValidator:
File "/usr/home/XYZ/.virtualenvs/web/lib/python3.6/site-
packages/django/contrib/auth/password_validation.py", line 170, in
CommonPasswordValidator
DEFAULT_PASSWORD_LIST_PATH =
Path(__file__).resolve(strict=True).parent / 'common-passwords.txt.gz'
File "/usr/local/lib/python3.6/pathlib.py", line 1141, in resolve
s = self._flavour.resolve(self, strict=strict)
File "/usr/local/lib/python3.6/pathlib.py", line 346, in resolve
return _resolve(base, str(path)) or sep
File "/usr/local/lib/python3.6/pathlib.py", line 330, in _resolve
target = accessor.readlink(newpath)
File "/usr/local/lib/python3.6/pathlib.py", line 440, in readlink
return os.readlink(path)
PermissionError: [Errno 13] Permission denied: '/usr'
(web) [XYZ@s39]:<~/domains/XXX/public_python>$ pip install Django==3.0.8
Collecting Django==3.0.8
Downloading Django-3.0.8-py3-none-any.whl (7.5 MB)
|████████████████████████████████| 7.5 MB 4.5 MB/s
Requirement already satisfied: sqlparse>=0.2.2 in
/usr/home/XYZ/.virtualenvs/web/lib/python3.6/site-packages (from
Django==3.0.8) (0.3.1)
Requirement already satisfied: asgiref~=3.2 in
/usr/home/XYZ/.virtualenvs/web/lib/python3.6/site-packages (from
Django==3.0.8) (3.2.10)
Requirement already satisfied: pytz in
/usr/home/XYZ/.virtualenvs/web/lib/python3.6/site-packages (from
Django==3.0.8) (2020.1)
Installing collected packages: Django
Attempting uninstall: Django
Found existing installation: Django 3.1
Uninstalling Django-3.1:
Successfully uninstalled Django-3.1
Successfully installed Django-3.0.8
(web) [XYZ@s39]:<~/domains/XXX/public_python>$ python manage.py migrate
Operations to perform:
Apply all migrations: admin, auth, contenttypes, database, pages,
sessions
Running migrations:
No migrations to apply.
(web) [XYZ@s39]:<~/domains/XXX/public_python>$
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/31945>
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