Opened 5 years ago

Closed 5 years ago

#30982 closed Bug (needsinfo)

django.db.backends.postgresql is not one of available backends. — at Version 1

Reported by: Danny-Tech Owned by: nobody
Component: Database layer (models, ORM) Version: 2.2
Severity: Normal Keywords:
Cc: Triage Stage: Unreviewed
Has patch: no Needs documentation: no
Needs tests: no Patch needs improvement: no
Easy pickings: no UI/UX: no

Description (last modified by Mariusz Felisiak)

ayuda por favor al hacer las miigraciones para conectarme con postgres me sale este error:

Traceback (most recent call last):
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\utils.py", line 110, in load_backend        
    return import_module('%s.base' % backend_name)
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\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 953, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import  
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 965, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'django.db.backends.postgresql'

The above exception was the direct cause of the following exception:

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 "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line
    utility.execute()
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\management\__init__.py", line 357, in execute
    django.setup()
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\apps\registry.py", line 114, in populate       
    app_config.import_models()
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\apps\config.py", line 211, in import_models    
    self.models_module = import_module(models_module_name)
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\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 "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\contrib\auth\models.py", line 2, in <module>   
    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\contrib\auth\base_user.py", line 47, in <module>
    class AbstractBaseUser(models.Model):
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\base.py", line 117, in __new__       
    new_class.add_to_class('_meta', Options(meta, app_label))      
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\base.py", line 321, in add_to_class  
    value.contribute_to_class(cls, name)
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\options.py", line 204, in contribute_to_class
    self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\__init__.py", line 28, in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\utils.py", line 201, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\utils.py", line 125, in load_backend
    ) from e_user
django.core.exceptions.ImproperlyConfigured: 'django.db.backends.postgresql' isn't an available database backend.
Try using 'django.db.backends.XXX', where XXX is one of:
    'mysql', 'oracle', 'sqlite3'
P                                        oCode\Django\TiendaOnline>
PS C:\Users\PC\Desktop\Daniel\visualStudioCode\Django\TiendaOnline> python manage.py makemigrations
Traceback (most recent call last):
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\utils.py", line 110, in load_backend
    return import_module('%s.base' % backend_name)
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\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 953, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 965, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'django.db.backends.postgresql'

The above exception was the direct cause of the following exception:

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 "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line
    utility.execute()
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\core\management\__init__.py", line 357, in execute
    django.setup()
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\apps\registry.py", line 114, in populate
    app_config.import_models()
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\apps\config.py", line 211, in import_models
    self.models_module = import_module(models_module_name)
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\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 "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\contrib\auth\models.py", line 2, in <module>
    from django.contrib.auth.base_user import AbstractBaseUser, BaseUserManager
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\contrib\auth\base_user.py", line 47, in <module>
    class AbstractBaseUser(models.Model):
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\base.py", line 117, in __new__
    new_class.add_to_class('_meta', Options(meta, app_label))
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\base.py", line 321, in add_to_class
    value.contribute_to_class(cls, name)
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\models\options.py", line 204, in contribute_to_class
    self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\__init__.py", line 28, in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\utils.py", line 201, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "C:\Users\PC\AppData\Local\Programs\Python\Python37-32\lib\site-packages\django\db\utils.py", line 125, in load_backend
    ) from e_user
django.core.exceptions.ImproperlyConfigured: 'django.db.backends.postgresql' isn't an available database backend.
Try using 'django.db.backends.XXX', where XXX is one of:
    'mysql', 'oracle', 'sqlite3'

Change History (1)

comment:1 by Mariusz Felisiak, 5 years ago

Component: Uncategorized → Database layer (models, ORM)
Description: modified (diff)
Resolution: → needsinfo
Status: new → closed
Summary: error al hacer migraciones → django.db.backends.postgresql is not one of available backends.

Thanks for this ticket, however we will not be able to reproduce this issue with provided info. IMO it's not an issue in Django, but something with you're configuration/environment. Maybe you're using Python that's not supported by this version of Django, it's hard to tell. I think you should try to use one of support channels. You can also try to provide a sample and small project that we can use to reproduce this issue.

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