How to set up a PostgreSQL database in Django

Question

I'm new to Python and Django.

I'm configuring a Django project using a PostgreSQL database engine backend, But I'm getting errors on each database operation. For example when I run manage.py syncdb, I'm getting:

C:\xampp\htdocs\djangodir>python manage.py syncdb
Traceback (most recent call last):
  File "manage.py", line 11, in <module>
    execute_manager(settings)
  File "C:\Python27\lib\site-packages\django\core\management\__init__.py", line
438, in execute_manager
    utility.execute()
  File "C:\Python27\lib\site-packages\django\core\management\__init__.py", line
379, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "C:\Python27\lib\site-packages\django\core\management\__init__.py", line
261, in fetch_command
    klass = load_command_class(app_name, subcommand)
  File "C:\Python27\lib\site-packages\django\core\management\__init__.py", line
67, in load_command_class
    module = import_module('%s.management.commands.%s' % (app_name, name))
  File "C:\Python27\lib\site-packages\django\utils\importlib.py", line 35, in im
port_module
    __import__(name)
  File "C:\Python27\lib\site-packages\django\core\management\commands\syncdb.py"
, line 7, in <module>
    from django.core.management.sql import custom_sql_for_model, emit_post_sync_
signal
  File "C:\Python27\lib\site-packages\django\core\management\sql.py", line 6, in
 <module>
    from django.db import models
  File "C:\Python27\lib\site-packages\django\db\__init__.py", line 77, in <modul
e>
    connection = connections[DEFAULT_DB_ALIAS]
  File "C:\Python27\lib\site-packages\django\db\utils.py", line 92, in __getitem
__
    backend = load_backend(db['ENGINE'])
  File "C:\Python27\lib\site-packages\django\db\utils.py", line 33, in load_back
end
    return import_module('.base', backend_name)
  File "C:\Python27\lib\site-packages\django\utils\importlib.py", line 35, in im
port_module
    __import__(name)
  File "C:\Python27\lib\site-packages\django\db\backends\postgresql\base.py", li
ne 23, in <module>
    raise ImproperlyConfigured("Error loading psycopg module: %s" % e)
django.core.exceptions.ImproperlyConfigured: Error loading psycopg module: No mo
dule named psycopg

Can someone give me a clue on what is going on?

Answer 1

Also make sure you have the PostgreSQL development package installed. On Ubuntu you need to do something like this:

$ sudo apt-get install libpq-dev

Answer 2

This may seem a bit lengthy, but it worked for me without any error.

At first, Install phppgadmin from Ubuntu Software Center.

Then run these steps in terminal.

sudo apt-get install libpq-dev python-dev
pip install psycopg2
sudo apt-get install postgresql postgresql-contrib phppgadmin

Start the apache server

sudo service apache2 start

Now run this too in terminal, to edit the apache file.

sudo gedit /etc/apache2/apache2.conf

Add the following line to the opened file:

Include /etc/apache2/conf.d/phppgadmin

Now reload apache. Use terminal.

sudo /etc/init.d/apache2 reload

Now you will have to create a new database. Login as 'postgres' user. Continue in terminal.

sudo su - postgres

In case you have trouble with the password of 'postgres', you can change it using the answer here https://stackoverflow.com/a/12721020/1990793 and continue with the steps.

Now create a database

createdb <db_name>

Now create a new user to login to phppgadmin later, providing a new password.

createuser -P <new_user>

Now your postgressql has been setup, and you can go to:

http://localhost/phppgadmin/

and login using the new user you've created, in order to view the database.

Answer 3

You can install "psycopg" with the following command:

# sudo easy_install psycopg2

Alternatively, you can use pip :

# pip install psycopg2

easy_install and pip are included with ActivePython, or manually installed from the respective project sites.

Or, simply get the pre-built Windows installer.

Answer 4

This is one of the very good and step by step process to set up PostgreSQL in ubuntu server. I have tried it with Ubuntu 16.04 and its working.

https://www.digitalocean.com/community/tutorials/how-to-use-postgresql-with-your-django-application-on-ubuntu-14-04

Answer 5

You need to install psycopg2 Python library.

Installation

---

Download http://initd.org/psycopg/, then install it under Python PATH

After downloading, easily extract the tarball and:

$ python setup.py install

Or if you wish, install it by either easy_install or pip.

^{(I prefer to use pip over easy_install for no reason.)}

• $ easy_install psycopg2
• $ pip install psycopg2

Configuration

---

in settings.py

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql',
        'NAME': 'db_name',                      
        'USER': 'db_user',
        'PASSWORD': 'db_user_password',
        'HOST': '',
        'PORT': 'db_port_number',
    }
}

---

^{- Other installation instructions can be found at download page and install page.}