Version 4.3.3 AttributeError: 'NoneType' object has no attribute 'split'

[kosuke-zhang]

 File "/var/lang/python37/lib/python3.7/threading.py", line 926, in _bootstrap_inner

    self.run()

  File "/var/lang/python37/lib/python3.7/threading.py", line 870, in run

    self._target(*self._args, **self._kwargs)

  File "/var/user/django/utils/autoreload.py", line 64, in wrapper

    fn(*args, **kwargs)

  File "/var/user/django/core/management/commands/runserver.py", line 118, in inner_run

    self.check(display_num_errors=True)

  File "/var/user/django/core/management/base.py", line 423, in check

    databases=databases,

  File "/var/user/django/core/checks/registry.py", line 76, in run_checks

    new_errors = check(app_configs=app_configs, databases=databases)

  File "/var/user/django/core/checks/caches.py", line 63, in check_file_based_cache_is_absolute

    cache = caches[alias]

  File "/var/user/django/utils/connection.py", line 62, in __getitem__

    conn = self.create_connection(alias)

  File "/var/user/django/core/cache/__init__.py", line 44, in create_connection

    return backend_cls(location, params)

  File "/var/user/django_redis/cache.py", line 53, in __init__

    self._client_cls = import_string(self._client_cls)

  File "/var/user/django/utils/module_loading.py", line 17, in import_string

    module = import_module(module_path)

  File "/var/lang/python37/lib/python3.7/importlib/__init__.py", line 127, in import_module

    return _bootstrap._gcd_import(name[level:], package, level)

  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import

  File "<frozen importlib._bootstrap>", line 983, in _find_and_load

  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked

  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked

  File "<frozen importlib._bootstrap_external>", line 728, in exec_module

  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed

  File "/var/user/django_redis/client/__init__.py", line 1, in <module>

    from .default import DefaultClient

  File "/var/user/django_redis/client/default.py", line 12, in <module>

    from redis import Redis

  File "/var/user/redis/__init__.py", line 54, in <module>

    VERSION = tuple(map(int_or_str, __version__.split(".")))

AttributeError: 'NoneType' object has no attribute 'split'

[inputvalidation]

This still appears to affect 4.3.5 as well, this time on Python 3.8.

[chayim]

@dvora-h can you have a look?

[inputvalidation]

Did you have a chance to have a look?

[SessionIssue]

I've got the same issue once in a while. Would be nice if you could implement a fallback for this.

[dvora-h]

Fixed in #2539 and #2542

[kosuke-zhang]

you not resolve it in latest version 4.4.2...

Exception in thread django-main-thread:

Traceback (most recent call last):

  File "/opt/redis/__init__.py", line 57, in <module>

    VERSION = tuple(map(int_or_str, __version__.split(".")))

AttributeError: 'NoneType' object has no attribute 'split'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

  File "/var/lang/python37/lib/python3.7/threading.py", line 926, in _bootstrap_inner

    self.run()

  File "/var/lang/python37/lib/python3.7/threading.py", line 870, in run

    self._target(*self._args, **self._kwargs)

  File "/opt/django/utils/autoreload.py", line 64, in wrapper

    fn(*args, **kwargs)

  File "/opt/django/core/management/commands/runserver.py", line 118, in inner_run

    self.check(display_num_errors=True)

  File "/opt/django/core/management/base.py", line 423, in check

    databases=databases,

  File "/opt/django/core/checks/registry.py", line 76, in run_checks

    new_errors = check(app_configs=app_configs, databases=databases)

  File "/opt/django/core/checks/urls.py", line 40, in check_url_namespaces_unique

    all_namespaces = _load_all_namespaces(resolver)

  File "/opt/django/core/checks/urls.py", line 57, in _load_all_namespaces

    url_patterns = getattr(resolver, 'url_patterns', [])

  File "/opt/django/utils/functional.py", line 48, in __get__

    res = instance.__dict__[self.name] = self.func(instance)

  File "/opt/django/urls/resolvers.py", line 602, in url_patterns

    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)

  File "/opt/django/utils/functional.py", line 48, in __get__

    res = instance.__dict__[self.name] = self.func(instance)

  File "/opt/django/urls/resolvers.py", line 595, in urlconf_module

    return import_module(self.urlconf_name)

  File "/var/lang/python37/lib/python3.7/importlib/__init__.py", line 127, in import_module

    return _bootstrap._gcd_import(name[level:], package, level)

  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import

  File "<frozen importlib._bootstrap>", line 983, in _find_and_load

  File "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked

  File "<frozen importlib._bootstrap>", line 677, in _load_unlocked

  File "<frozen importlib._bootstrap_external>", line 728, in exec_module

  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed

  File "/var/user/backend/urls.py", line 23, in <module>

    from app_config.views import get_app_config

  File "/var/user/apps/app_config/views.py", line 11, in <module>

    @permission_classes((AllowAny,))

  File "/opt/django/utils/decorators.py", line 117, in _decorator

    middleware = middleware_class(view_func, *m_args, **m_kwargs)

  File "/opt/django/middleware/cache.py", line 174, in __init__

    super().__init__(get_response)

  File "/opt/django/middleware/cache.py", line 67, in __init__

    super().__init__(get_response)

  File "/opt/django/middleware/cache.py", line 133, in __init__

    self.cache = caches[self.cache_alias]

  File "/opt/django/utils/connection.py", line 62, in __getitem__

    conn = self.create_connection(alias)

  File "/opt/django/core/cache/__init__.py", line 44, in create_connection

    return backend_cls(location, params)

  File "/opt/django_redis/cache.py", line 53, in __init__

    self._client_cls = import_string(self._client_cls)

  File "/opt/django/utils/module_loading.py", line 17, in import_string

    module = import_module(module_path)

  File "/var/lang/python37/lib/python3.7/importlib/__init__.py", line 127, in import_module

    return _bootstrap._gcd_import(name[level:], package, level)

  File "/opt/django_redis/client/__init__.py", line 1, in <module>

    from .default import DefaultClient

  File "/opt/django_redis/client/default.py", line 12, in <module>

    from redis import Redis

  File "/opt/redis/__init__.py", line 59, in <module>

    VERSION = tuple(99, 99, 99)

TypeError: tuple expected at most 1 arguments, got 3