We Keep Coding

Pycharm / Django defer Oracle Database connection

I have a Django project that connects to an Oracle database - implemented in PyCharm. I would like the app to monitor the connection and display a status as to whether the database is up or down. I stopped the listener to simulate an error. However, when I start the PyCharm server to test the functionality, the app immediately attempts a database connection and fails. Is it possible to defer the database connection until I can command one within the app?
Here is the error traceback on server startup:
C:\Users\steve\PycharmProjects\Tools\venv\Scripts\python.exe C:/Users/steve/PycharmProjects/Tools/Tools/manage.py runserver
Watching for file changes with StatReloader
Performing system checks...
System check identified no issues (0 silenced).
Exception in thread django-main-thread:
Traceback (most recent call last):
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\db\backends\base\base.py", line 219, in ensure_connection
self.connect()
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\db\backends\base\base.py", line 200, in connect
self.connection = self.get_new_connection(conn_params)
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\db\backends\oracle\base.py", line 229, in get_new_connection
return Database.connect(
cx_Oracle.DatabaseError: ORA-12541: TNS:no listener
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "C:\Users\steve\AppData\Local\Programs\Python\Python39\lib\threading.py", line 954, in _bootstrap_inner
self.run()
File "C:\Users\steve\AppData\Local\Programs\Python\Python39\lib\threading.py", line 892, in run
self._target(*self._args, **self._kwargs)
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\utils\autoreload.py", line 64, in wrapper
fn(*args, **kwargs)
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\core\management\commands\runserver.py", line 121, in inner_run
self.check_migrations()
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\core\management\base.py", line 486, in check_migrations
executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\db\migrations\executor.py", line 18, in init
self.loader = MigrationLoader(self.connection)
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\db\migrations\loader.py", line 53, in init
self.build_graph()
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\db\migrations\loader.py", line 220, in build_graph
self.applied_migrations = recorder.applied_migrations()
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\db\migrations\recorder.py", line 77, in applied_migrations
if self.has_table():
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\db\migrations\recorder.py", line 55, in has_table
with self.connection.cursor() as cursor:
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\db\backends\base\base.py", line 259, in cursor
return self._cursor()
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\db\backends\base\base.py", line 235, in _cursor
self.ensure_connection()
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\db\backends\base\base.py", line 219, in ensure_connection
self.connect()
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\db\utils.py", line 90, in exit
raise dj_exc_value.with_traceback(traceback) from exc_value
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\db\backends\base\base.py", line 219, in ensure_connection
self.connect()
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\db\backends\base\base.py", line 200, in connect
self.connection = self.get_new_connection(conn_params)
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\steve\PycharmProjects\Tools\venv\lib\site-packages\django\db\backends\oracle\base.py", line 229, in get_new_connection
return Database.connect(
django.db.utils.DatabaseError: ORA-12541: TNS:no listener

PostgreSQL error "unable to connect to server

I start learning Django, and I had a problem using the Postegres database,
The server worked fine with sqlite3, but as soon as I declared Postgres in the project, the server stopped working
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql', # on utilise l'adaptateur postgresql
'NAME': 'sarah disquaires', # le nom de notre base de donnees creee precedemment
'USER': 'sarra', # attention : remplacez par votre nom d'utilisateur
'PASSWORD': '',
'HOST': '',
'PORT': '5432',
}
}
I get this error:
python manage.py runserver
Watching for file changes with StatReloader
Performing system checks...
System check identified no issues (0 silenced).
Exception in thread django-main-thread:
Traceback (most recent call last):
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\base\base.py", line 219, in ensure_connection
self.connect()
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\base\base.py", line 200, in connect
self.connection = self.get_new_connection(conn_params)
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\postgresql\base.py", line 187, in get_new_connection
connection = Database.connect(**conn_params)
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\psycopg2\__init__.py", line 122, in connect
conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
psycopg2.OperationalError: fe_sendauth: no password supplied
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\threading.py", line 932, in _bootstrap_inner
self.run()
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\threading.py", line 870, in run
self._target(*self._args, **self._kwargs)
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\utils\autoreload.py", line 64, in wrapper
fn(*args, **kwargs)
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\core\management\commands\runserver.py", line 121, in inner_run
self.check_migrations()
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\core\management\base.py", line 486, in check_migrations
executor = MigrationExecutor(connections[DEFAULT_DB_ALIAS])
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\migrations\executor.py", line 18, in __init__
self.loader = MigrationLoader(self.connection)
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\migrations\loader.py", line 53, in __init__
self.build_graph()
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\migrations\loader.py", line 220, in build_graph
self.applied_migrations = recorder.applied_migrations()
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\migrations\recorder.py", line 77, in applied_migrations
if self.has_table():
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\migrations\recorder.py", line 55, in has_table
with self.connection.cursor() as cursor:
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\base\base.py", line 259, in cursor
return self._cursor()
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\base\base.py", line 235, in _cursor
self.ensure_connection()
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\base\base.py", line 219, in ensure_connection
self.connect()
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\base\base.py", line 219, in ensure_connection
self.connect()
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\base\base.py", line 200, in connect
self.connection = self.get_new_connection(conn_params)
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\postgresql\base.py", line 187, in get_new_connection
connection = Database.connect(**conn_params)
File "C:\Users\sarra\AppData\Local\Programs\Python\Python38-32\lib\site-packages\psycopg2\__init__.py", line 122, in connect
conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
django.db.utils.OperationalError: fe_sendauth: no password supplied
I tried to migrate the base with python manage.py makemigrations and python manage.py migrate but didn't work,
I tested several solutions proposed on several sites, but did not work for me.
please help me solve this problem

As the error message says:
no password supplied
So add the database password to the configurarion dictionary and re-run the migration

Migration error(django.db.utils.OperationalError)

I'm trying to migrate my custom user model and I run makemigrations command to make migrations for new models. But when I run migrate command it throws this error :
conn = _connect(dsn, connection_factory=connection_factory,
**kwasync) django.db.utils.OperationalError
Trace back:
(venv_ruling) C:\Users\enosh\venv_ruling\ruling>python manage.py migrate
Traceback (most recent call last):
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\db\backends\base\base.py", line 219, in ensure_connection
self.connect()
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\db\backends\base\base.py", line 200, in connect
self.connection = self.get_new_connection(conn_params)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\db\backends\postgresql\base.py", line 187, in get_new_connection
connection = Database.connect(**conn_params)
File "C:\Users\enosh\venv_ruling\lib\site-packages\psycopg2\__init__.py", line 127, in connect
conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
psycopg2.OperationalError
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "C:\Users\enosh\venv_ruling\ruling\manage.py", line 22, in <module>
main()
File "C:\Users\enosh\venv_ruling\ruling\manage.py", line 18, in main
execute_from_command_line(sys.argv)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\core\management\__init__.py", line 419, in execute_from_command_line
utility.execute()
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\core\management\__init__.py", line 413, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\core\management\base.py", line 354, in run_from_argv
self.execute(*args, **cmd_options)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\core\management\base.py", line 398, in execute
output = self.handle(*args, **options)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\core\management\base.py", line 89, in wrapped
res = handle_func(*args, **kwargs)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\core\management\commands\migrate.py", line 75, in handle
self.check(databases=[database])
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\core\management\base.py", line 419, in check
all_issues = checks.run_checks(
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\core\checks\registry.py", line 76, in run_checks
new_errors = check(app_configs=app_configs, databases=databases)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\core\checks\model_checks.py", line 34, in check_all_models
errors.extend(model.check(**kwargs))
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\db\models\base.py", line 1290, in check
*cls._check_indexes(databases),
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\db\models\base.py", line 1680, in _check_indexes
connection.features.supports_covering_indexes or
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\utils\functional.py", line 48, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\db\backends\postgresql\features.py", line 93, in is_postgresql_11
return self.connection.pg_version >= 110000
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\utils\functional.py", line 48, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\db\backends\postgresql\base.py", line 329, in pg_version
with self.temporary_connection():
File "C:\Users\enosh\AppData\Local\Programs\Python\Python39\lib\contextlib.py", line 117, in __enter__
return next(self.gen)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\db\backends\base\base.py", line 603, in temporary_connection
with self.cursor() as cursor:
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\db\backends\base\base.py", line 259, in cursor
return self._cursor()
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\db\backends\base\base.py", line 235, in _cursor
self.ensure_connection()
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\db\backends\base\base.py", line 219, in ensure_connection
self.connect()
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\db\utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\db\backends\base\base.py", line 219, in ensure_connection
self.connect()
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\db\backends\base\base.py", line 200, in connect
self.connection = self.get_new_connection(conn_params)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\utils\asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "C:\Users\enosh\venv_ruling\lib\site-packages\django\db\backends\postgresql\base.py", line 187, in get_new_connection
connection = Database.connect(**conn_params)
File "C:\Users\enosh\venv_ruling\lib\site-packages\psycopg2\__init__.py", line 127, in connect
conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
django.db.utils.OperationalError
models.py
from django.contrib.auth.models import AbstractUser
class CustomUser(AbstractUser):
"""extend usermodel"""
class Meta:
verbose_name_plural = 'CustomUser'
settings.py
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': 'rulings',
'USER': 'xxxxxxx',
'PASSWORD': 'xxxxxxx',
'HOST': '',
'PORT': '',
}
}
AUTH_USER_MODEL = 'accounts.CustomUser'
The postgresql's database is empty.(ver.12.6)
I just mentioned user model and settings in this question but still if more code is required then tell me I'll update my question with that information. Thank you

I don't know if you have left the port empty for the question or it is actually empty, but try this in the console and see if the connection is successful.
conn=psycopg2.connect(database="rulings", user="xxx", password="xxx",port=5432)
Also this might not be your port(it is the default but yours might be changed) check your port number \conninfo in the postgres shell. And let me know if it helps.

You have to check for the host_ip or the port number in the settings.py file of django.

makemigrations isn't working- how to fix it?

I have a dockerized django project. I'm trying to make migrations, but I keep getting this error. What does this mean, and how can I fix it? I am really new to this, so please be as detailed as possible! Thank you
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 "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
utility.execute()
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/core/management/__init__.py", line 395, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/core/management/base.py", line 328, in run_from_argv
self.execute(*args, **cmd_options)
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/core/management/base.py", line 369, in execute
output = self.handle(*args, **options)
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/core/management/base.py", line 83, in wrapped
res = handle_func(*args, **kwargs)
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/core/management/commands/makemigrations.py", line 101, in handle
loader.check_consistent_history(connection)
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/db/migrations/loader.py", line 283, in check_consistent_history
applied = recorder.applied_migrations()
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/db/migrations/recorder.py", line 76, in applied_migrations
if self.has_table():
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/db/migrations/recorder.py", line 56, in has_table
return self.Migration._meta.db_table in self.connection.introspection.table_names(self.connection.cursor())
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/db/backends/base/base.py", line 260, in cursor
return self._cursor()
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/db/backends/base/base.py", line 236, in _cursor
self.ensure_connection()
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/db/backends/base/base.py", line 220, in ensure_connection
self.connect()
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/db/utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/db/backends/base/base.py", line 220, in ensure_connection
self.connect()
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/db/backends/base/base.py", line 197, in connect
self.connection = self.get_new_connection(conn_params)
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/django/db/backends/postgresql/base.py", line 185, in get_new_connection
connection = Database.connect(**conn_params)
File "/Users/jasminedogu/opt/anaconda3/lib/python3.7/site-packages/psycopg2/__init__.py", line 127, in connect
conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
django.db.utils.OperationalError: could not connect to server: No such file or directory
Is the server running locally and accepting
connections on Unix domain socket "/tmp/.s.PGSQL.5432"?

Your Django application is not connecting to the database.
Couple of things to check.
What port is your database running on and what is the hostname? If you're using docker-compose, the host will be the same as the database service name.
Next, check your settings.py insuring that your database is using the correct host and port. By default, on Postgres, Django will use port 5432. If this is not the case, update it.
Similarly, if you have not explicitly set a host, Django will use localhost. You will need to change this value to whatever your database service name is.

can't run my server because of mysql errors

I am doing a project in django and when i run my server python manage.py runserver i get the following errors.
Performing system checks...
Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x1045406a8>
Traceback (most recent call last):
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/backends/base/base.py", line 216, in ensure_connection
self.connect()
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/backends/base/base.py", line 194, in connect
self.connection = self.get_new_connection(conn_params)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 236, in get_new_connection
return Database.connect(**conn_params)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/MySQLdb/__init__.py", line 86, in Connect
return Connection(*args, **kwargs)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/MySQLdb/connections.py", line 204, in __init__
super(Connection, self).__init__(*args, **kwargs2)
_mysql_exceptions.OperationalError: (2003, "Can't connect to MySQL server on '127.0.0.1' (61)")
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/utils/autoreload.py", line 225, in wrapper
fn(*args, **kwargs)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/core/management/commands/runserver.py", line 120, in inner_run
self.check(display_num_errors=True)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/core/management/base.py", line 364, in check
include_deployment_checks=include_deployment_checks,
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/core/management/base.py", line 351, in _run_checks
return checks.run_checks(**kwargs)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/core/checks/registry.py", line 73, in run_checks
new_errors = check(app_configs=app_configs)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/core/checks/model_checks.py", line 27, in check_all_models
errors.extend(model.check(**kwargs))
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/models/base.py", line 1200, in check
errors.extend(cls._check_fields(**kwargs))
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/models/base.py", line 1272, in _check_fields
errors.extend(field.check(**kwargs))
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/models/fields/__init__.py", line 894, in check
errors = super().check(**kwargs)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/models/fields/__init__.py", line 206, in check
errors.extend(self._check_backend_specific_checks(**kwargs))
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/models/fields/__init__.py", line 303, in _check_backend_specific_checks
return connections[db].validation.check_field(self, **kwargs)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/backends/base/validation.py", line 21, in check_field
field_type = field.db_type(self.connection)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/models/fields/__init__.py", line 648, in db_type
return connection.data_types[self.get_internal_type()] % data
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/utils/functional.py", line 36, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 133, in data_types
if self.features.supports_microsecond_precision:
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/utils/functional.py", line 36, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/backends/mysql/features.py", line 65, in supports_microsecond_precision
return self.connection.mysql_version >= (5, 6, 4)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/utils/functional.py", line 36, in __get__
res = instance.__dict__[self.name] = self.func(instance)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 345, in mysql_version
with self.temporary_connection() as cursor:
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/contextlib.py", line 81, in __enter__
return next(self.gen)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/backends/base/base.py", line 576, in temporary_connection
cursor = self.cursor()
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/backends/base/base.py", line 255, in cursor
return self._cursor()
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/backends/base/base.py", line 232, in _cursor
self.ensure_connection()
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/backends/base/base.py", line 216, in ensure_connection
self.connect()
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/utils.py", line 89, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/backends/base/base.py", line 216, in ensure_connection
self.connect()
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/backends/base/base.py", line 194, in connect
self.connection = self.get_new_connection(conn_params)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/django/db/backends/mysql/base.py", line 236, in get_new_connection
return Database.connect(**conn_params)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/MySQLdb/__init__.py", line 86, in Connect
return Connection(*args, **kwargs)
File "/Users/x/Desktop/bakeinsta/env/lib/python3.6/site-packages/MySQLdb/connections.py", line 204, in __init__
super(Connection, self).__init__(*args, **kwargs2)
django.db.utils.OperationalError: (2003, "Can't connect to MySQL server on '127.0.0.1' (61)")