Trouble shooting with postgresql to connect with Django | Window 10 - python

I install PostgreSQL version 10
also, install pgAdmin4
During the PostgreSQL installation, as Every developer know default username = Postgres
My PostgreSQL username was Postgres.
installation window asked me the password, so put the new password
Now when I connect PostgreSQL to my Django project
I install this module
pip install psycopg2
I created a new database using pgAdmin4 named 'mydb'
In my Settings.py file
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': 'mydb',
'USERNAME':'postgres',
'PASSWORD' : '<my_Password_here>' , # I entered the same password that i provided during postgres installation
'HOST' : 'localhost',
'PORT': '5432',
}
}
postgres username = 'postgres'
where
my Window Username = 'Huzaifa'
ERROR is here
django.db.utils.OperationalError: FATAL: password authentication failed for user "Huzaifa"
Why Postgres using my Window User (username) for authentication
NOTE:
I already set environment variables as following
C:\Program Files\PostgreSQL\10\lib
C:\Program Files\PostgreSQL\10\bin


After Posting this Question. I found what I was mistaking.
There is no Variable name USERNAME. change USERNAME to USER
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': 'mydb',
'USERNAME':'postgres', # <-- Here is the Mistake -->
'PASSWORD' : '<my_Password_here>' ,
'HOST' : 'localhost',
'PORT': '5432',
}
}
Change to...
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': 'mydb',
'USER':'postgres', # <-- Here is the Mistake -->
'PASSWORD' : '<my_Password_here>' ,
'HOST' : 'localhost',
'PORT': '5432',
}
}

Related

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'USER' : 'root',
'PASSWORD' : 'abcd',
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then when I try this code python manage.py migrate on cmd. It throws an big error, I can't understand what is the problem, please help me solve it. This is the error:

You missed the s in django.db.backends.mysql
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here's the error im recieving when executing >python manage.py migrate in command prompt
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It's the first time I'm deploying a site using MySQL instead of SQLite3, so I'm quite new at this, after reading some documentation I found out that I have to change some files like this :
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manage.py
try:
import pymysql
pymysql.install_as_MySQLdb()
except:
pass
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When I run the Bash Console using python manage.py migrate I get this error message :
django.db.utils.OperationalError: (2003, "Can't connect to MySQL server on 'localhost' ([Errno 111] Connection refused)")
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Check this guide. I used it to deploy my webapp.

You can use in this way
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Database name : socialdatabase
Host : xyz.mysql.pythonanywhere-services.com
User : johndoe
Name : johndoe$socialdatabase
DATABASES = {
'default': {
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postgresql django not sending password

I am getting the error OperationalError: fe_sendauth: no password supplied on my production server but I cannot see why...
settings.py
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': 'dbname',
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'PASSWORD': PROD_DB_PASSWORD,
'HOST': 'localhost',
'PORT': '5432',
}
}
pg_hba.conf:
host dbname dbuser localhost md5
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I suspect you're not passing the password correctly. Here's how you debug. After the DATABASES line in settings.py, can you try printing out the dict.
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': 'dbname',
'USER': 'dbuser',
'PASSWORD': PROD_DB_PASSWORD,
'HOST': 'localhost',
'PORT': '5432',
}
}
print DATABASES
Then manage.py runserver as you would.
See if the password is properly passed. Apologies my rep's not enough to comment yet.

For future readers also check the spelling and later cases. All database keys must be in UPPER CASE e.g ENGINE, NAME, USER, PASSWORD, HOST and PORT.
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql_psycopg2',
'NAME': os.getenv("DB_NAME", "db_name"),
"USER": os.getenv("DB_USERNAME", "db_user"),
"PASSWORD": os.getenv("DB_PASSWORD", "db#password"),
"HOST": os.getenv("DB_HOST", "localhost"),
"PORT": os.getenv("DB_PORT", "5432")
}
}

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> sudo python manage.py syncdb
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'default': {
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sudo service --status-all | grep postgres
...
[ + ] postgresql
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'ENGINE': 'django.db.backends.postgresql_psycopg2',
'USER': 'graphite',
'PASSWORD': '<password>',
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