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AttributeError on django migrations (production) – Nginx

In production I divided settings to 2 parts prod_settings.py and local_settings.py. For server Gunicorn with Nginx. So after makemigrations command it returns

AttributeError: 'str' object has no attribute 'setdefault'

The Traceback is ->

Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    main()
  File "manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "/home/artashes/venv/lib/python3.8/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "/home/artashes/venv/lib/python3.8/site-packages/django/core/management/__init__.py", line 377, in execute
    django.setup()
  File "/home/artashes/venv/lib/python3.8/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/home/artashes/venv/lib/python3.8/site-packages/django/apps/registry.py", line 114, in populate
    app_config.import_models()
  File "/home/artashes/venv/lib/python3.8/site-packages/django/apps/config.py", line 211, in import_models
    self.models_module = import_module(models_module_name)
  File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/artashes/venv/lib/python3.8/site-packages/django/contrib/auth/models.py", line 2, in <module>
    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
  File "/home/artashes/venv/lib/python3.8/site-packages/django/contrib/auth/base_user.py", line 48, in <module>
    class AbstractBaseUser(models.Model):
  File "/home/artashes/venv/lib/python3.8/site-packages/django/db/models/base.py", line 122, in __new__
    new_class.add_to_class('_meta', Options(meta, app_label))
  File "/home/artashes/venv/lib/python3.8/site-packages/django/db/models/base.py", line 326, in add_to_class
    value.contribute_to_class(cls, name)
  File "/home/artashes/venv/lib/python3.8/site-packages/django/db/models/options.py", line 206, in contribute_to_class
    self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
  File "/home/artashes/venv/lib/python3.8/site-packages/django/db/__init__.py", line 28, in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "/home/artashes/venv/lib/python3.8/site-packages/django/db/utils.py", line 211, in __getitem__
    self.ensure_defaults(alias)
  File "/home/artashes/venv/lib/python3.8/site-packages/django/db/utils.py", line 176, in ensure_defaults
    conn.setdefault('ATOMIC_REQUESTS', False)
AttributeError: 'str' object has no attribute 'setdefault'
(venv) artashes@multisad:~/multi$ python3 manage.py makemigrations
Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    main()
  File "manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "/home/artashes/venv/lib/python3.8/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
    utility.execute()
  File "/home/artashes/venv/lib/python3.8/site-packages/django/core/management/__init__.py", line 377, in execute
    django.setup()
  File "/home/artashes/venv/lib/python3.8/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/home/artashes/venv/lib/python3.8/site-packages/django/apps/registry.py", line 114, in populate
    app_config.import_models()
  File "/home/artashes/venv/lib/python3.8/site-packages/django/apps/config.py", line 211, in import_models
    self.models_module = import_module(models_module_name)
  File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/home/artashes/venv/lib/python3.8/site-packages/django/contrib/auth/models.py", line 2, in <module>
    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
  File "/home/artashes/venv/lib/python3.8/site-packages/django/contrib/auth/base_user.py", line 48, in <module>
    class AbstractBaseUser(models.Model):
  File "/home/artashes/venv/lib/python3.8/site-packages/django/db/models/base.py", line 122, in __new__
    new_class.add_to_class('_meta', Options(meta, app_label))
  File "/home/artashes/venv/lib/python3.8/site-packages/django/db/models/base.py", line 326, in add_to_class
    value.contribute_to_class(cls, name)
  File "/home/artashes/venv/lib/python3.8/site-packages/django/db/models/options.py", line 206, in contribute_to_class
    self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
  File "/home/artashes/venv/lib/python3.8/site-packages/django/db/__init__.py", line 28, in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "/home/artashes/venv/lib/python3.8/site-packages/django/db/utils.py", line 211, in __getitem__
    self.ensure_defaults(alias)
  File "/home/artashes/venv/lib/python3.8/site-packages/django/db/utils.py", line 176, in ensure_defaults
    conn.setdefault('ATOMIC_REQUESTS', False)
AttributeError: 'str' object has no attribute 'setdefault'
Tags:

2

Answers


  1. 0

    I think you kept the settings files name as prod_settings.py. I think by changing the file name to normal settings.py as Django assumes will fix the error.

    If that too doesn’t work, try running

    python manage.py makemigrations

    And then run

    python manage.py migrate
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  2. 0

    Not just your settings.py file looks for settings. All of your app along with your project and even models.py, views.py, admin.py, test.py and urls.py of your project and most importantly Django in its backend looks for the settings of your project in the settings.py file. So you will need to change this from each and every place where Django looks for settings.py which is technically impossible. So the optimal solution is to change it back to settings.py

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