Use PostgreSQL Database in Django on Shared Hosting

December 29, 2021December 27, 2019 by Hafiz Muhammad Umer

A while ago, I wrote a post about deploying Django on shared hosting which used MySQL database. Using the PostgreSQL database over MySQL databases has many advantages which you may see here. But the advantage specific to shared hosting is that you can use a version of Django higher than 2.1 (Which you can’t do with MySQL database). In this tutorial, I am using version 3.0 of Django.

Table of Contents

Before following the procedure, it is necessary to completely setup a Django app in CPanel. You can see the step by step procedure for that here. If you already have a Django app on CPanel that is using MySQL database, see this guide to migrate it to PostgreSQL database.

Create a PostgreSQL Database

One thing that is important to mention here is that many shared hosting packages only provide the MySQL database and do not include PostgreSQL databases. If your hosting has the PostgreSQL database, you will see it in your CPanel’s right Statistics Panel.

If your hosting does not have PostgreSQL databases or you don’t have a hosting, I recommend the Stellar Plus Plan of NameCheap shared hosting. This is what I am using in this tutorial.

Create a Database

Select a name for a new database and click on Create Database

Create a User

In the Add New User section, create a new user by giving its username and password.

Add the User to the Database

Scroll to the Add User To Database section and add the newly created user to the newly created database.

Use the Database in Django

Install psycopg2

Go to Terminal in your CPanel (you can also do this step via SSH) and install the PostgreSQL adapter (binary distribution) for python. You have to install it by running the following command after you have entered the virtual environment:

pip install psycopg2-binary

Make changes to settings.py

Now, edit your settings.py and add the following DATABASES settings.

'default': {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'NAME': 'database_name',
        'USER': 'database_username',
        'PASSWORD': 'database_password',
        'HOST': '127.0.0.1',
        'PORT': '5432',
    }

Replace the database_name with the name of the database you created.
Replace the database_username with the username of the user you added to the database.
Replace the database_password with the password of the user you added to the database.

In my case, the settings look like this:

Make sure to use 127.0.0.1 instead of localhost in the HOST. I made the mistake of using the localhost and I was unable to connect to the database. The hosting support was helpful enough to take a look at my code and make a correction. This is what they mentioned:

Restart the Python app

Go to Setup Python App in CPanel and restart the python app.

Useful Links

Post Views: 3,822

24 thoughts on “Use PostgreSQL Database in Django on Shared Hosting”

Simon Ombori

January 1, 2020 at 10:55 pm

Very useful
Reply
Jarad

January 11, 2020 at 2:26 am

Very useful! Thanks for posting your support email about 127.0.0.1 instead of localhost and how a cPanel user doesn’t have the level of permissions to translate ‘localhost’. So many nuances to keep in mind probably all different across hosting providers.
Reply
Damir

March 27, 2020 at 8:34 am

Great tutorial!
But, how do you access postgreSQL database from cPanel?
When I go to PostgreSQL Databases page I see the name of my database and of the user, but there seems to be no way to access my database. In phpPgAdmin I see only Login Failed.
Reply
- Hafiz Muhammad Umer
  
  March 30, 2020 at 2:55 pm
  
  Contact your hosting provider about this login failed issue. This should not happen.
  Reply
nathan

May 12, 2020 at 3:07 pm

My problem is a version error on Namecheap.

django.db.utils.OperationalError: SSL error: wrong version number
expected authentication request from server, but received S
Reply
- Hafiz Muhammad Umer
  
  May 12, 2020 at 6:51 pm
  
  In which step did you face the error? And please share the complete traceback.
  Reply
Rich H.

May 12, 2020 at 8:01 pm

How did you get django to install? I’m doing basically what you did, setting up a django 3.0 project with postgresql on namecheap. Settings pass integrity checks, but when I run manage.py migrate it fails on a SQL alter-table statement containing COLLATE, which isn’t supported in postgre until v.9.1.
Reply
- Hafiz Muhammad Umer
  
  May 12, 2020 at 8:14 pm
  
  I will try my method again and make updates if necessary. You can contact me using the contact page of the website. I’d love to help you.
  Reply
dennoh peter

July 5, 2020 at 1:33 am

I am on namecheap stellar plus plan
Reply
Chimuanya

August 30, 2020 at 10:14 pm

Very Useful tip although I am experience an issue when i run makemigrations:
django.db.utils.OperationalError: FATAL: no pg_hba.conf entry for host “::1”, user “db_username”, database “db_database_name”, SSL off,
Any help
Reply
- Hafiz Muhammad Umer
  
  August 30, 2020 at 10:53 pm
  
  Have you set up the database correctly in settings.py ?
  Reply
  - Chimuanya
    
    August 31, 2020 at 12:53 am
    
    Yes I have. all my details are correct. But when run manage.py makemigrations I get that error. is there a way i can access postgresql.conf file or do do have any suggestions how i can resolve my issues. my django version is 3.1, python version is 3.8.1, and postgres version is 8.4.2
    Reply
    - Chimuanya
      
      August 31, 2020 at 1:55 am
      
      i was able to fix it. the problem was my environment variable
      Reply
      - dennoh peter
        
        September 30, 2020 at 1:29 am
        
        Yes make sure there is no any trailing whitespace in the environment variable values
      - chukwuemeka
        
        October 24, 2020 at 10:03 am
        
        pls what exactly did you do
Jahswill Ovedhe

September 8, 2020 at 6:42 am

how they you resoloved please
Reply
- Hafiz Muhammad Umer
  
  September 8, 2020 at 12:48 pm
  
  Resolve what?
  Reply
Dan

October 19, 2020 at 7:46 pm

wah, after 3 weeks of trying and bumping on errors, have been tried both postgre and mysql but none seemed to work for me. thanks so much for this.
Reply
BELAID MOUDNI

November 26, 2020 at 12:58 am

i have a problem thats is shown :
syntax error at or near “ON”
LINE 1: …ory” (“seriesgo_id”, “category_id”) VALUES (4, 1) ON CONFLIC…
how i can resolve thats?
Reply
Adnan Munawar

March 8, 2022 at 10:29 am

Umar, I was looking for a way to install a new version of Django on my shared hosting account. Fortunately, you helped me. A big thanks to you!
Reply
Adnan Munawar

March 8, 2022 at 10:30 am

Umar, I was looking to install a new version of Django on my shared hosting account. Fortunately, you helped me. A big thanks to you!

But before that, I had encountered another error during the migration of the Django project.
Reply
shoukat Ali|

June 18, 2022 at 2:36 pm

Dear Umar, I was upset to install a new version of Django on my shared hosting account. Fortunately, you helped me. A big thanks to you!
Reply
Patrick Buller

December 20, 2022 at 6:59 pm

Hello.
Is the Postgres Version on Namecheap still working? I am aware version 8 is deprecated and currently not receiving support. I need to get started on a cheap Django & Postgres package.
Reply
Jos breed

January 13, 2023 at 7:42 am

Hello, i am getting the bellow error when i tried install psycopg2-binary :

“Building wheel for psycopg2-binary (setup.py) … error
error: subprocess-exited-with-error

× python setup.py bdist_wheel did not run successfully.
│ exit code: 1
╰─> [40 lines of output]
/home/josbmusc/virtualenv/josbreed_shop/3.9/lib/python3.9/site-packages/setuptools/config/setupcfg.py:508: SetuptoolsDeprecationWarning: The license_file parameter is deprecated, use license_files instead.
warnings.warn(msg, warning_class)
running bdist_wheel
running build
running build_py
creating build
creating build/lib.linux-x86_64-cpython-39
creating build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/extras.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/_json.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/__init__.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/_range.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/_ipaddress.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/sql.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/errors.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/tz.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/pool.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/extensions.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/errorcodes.py -> build/lib.linux-x86_64-cpython-39/psycopg2
running build_ext
building ‘psycopg2._psycopg’ extension
creating build/temp.linux-x86_64-cpython-39
creating build/temp.linux-x86_64-cpython-39/psycopg
gcc -Wno-unused-result -Wsign-compare -DNDEBUG -D_GNU_SOURCE -fPIC -fwrapv -O2 -pthread -Wno-unused-result -Wsign-compare -g -std=c99 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Werror=implicit-function-declaration -D_GNU_SOURCE -fPIC -fwrapv -D_GNU_SOURCE -fPIC -fwrapv -O2 -pthread -Wno-unused-result -Wsign-compare -g -std=c99 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Werror=implicit-function-declaration -fPIC “-DPSYCOPG_VERSION=2.9.5 (dt dec pq3 ext)” -DPSYCOPG_DEBUG=1 -DPG_VERSION_NUM=80420 -DPSYCOPG_DEBUG=1 -I/home/josbmusc/virtualenv/josbreed_shop/3.9/include -I/opt/alt/python39/include/python3.9 -I. -I/usr/include -I/usr/include/pgsql/server -I/usr/include/libxml2 -c psycopg/adapter_asis.c -o build/temp.linux-x86_64-cpython-39/psycopg/adapter_asis.o -Wdeclaration-after-statement
In file included from psycopg/adapter_asis.c:28:
./psycopg/psycopg.h:31:2: error: #error “Psycopg requires PostgreSQL client library (libpq) >= 9.1”
cc1: warning: unrecognized command line option “-Wno-unused-result”
cc1: warning: unrecognized command line option “-Wno-unused-result”
cc1: warning: unrecognized command line option “-Wno-unused-result”

It appears you are missing some prerequisite to build the package from source.

You may install a binary package by installing ‘psycopg2-binary’ from PyPI.
If you want to install psycopg2 from source, please install the packages
required for the build and try again.

For further information please check the ‘doc/src/install.rst’ file (also at
).

error: command ‘/usr/bin/gcc’ failed with exit code 1
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for psycopg2-binary
Running setup.py clean for psycopg2-binary
Failed to build psycopg2-binary
Installing collected packages: psycopg2-binary
Running setup.py install for psycopg2-binary … error
error: subprocess-exited-with-error

× Running setup.py install for psycopg2-binary did not run successfully.
│ exit code: 1
╰─> [42 lines of output]
/home/josbmusc/virtualenv/josbreed_shop/3.9/lib/python3.9/site-packages/setuptools/config/setupcfg.py:508: SetuptoolsDeprecationWarning: The license_file parameter is deprecated, use license_files instead.
warnings.warn(msg, warning_class)
running install
/home/josbmusc/virtualenv/josbreed_shop/3.9/lib/python3.9/site-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build andpip and other standards-based tools.
warnings.warn(
running build
running build_py
creating build
creating build/lib.linux-x86_64-cpython-39
creating build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/extras.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/_json.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/__init__.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/_range.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/_ipaddress.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/sql.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/errors.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/tz.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/pool.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/extensions.py -> build/lib.linux-x86_64-cpython-39/psycopg2
copying lib/errorcodes.py -> build/lib.linux-x86_64-cpython-39/psycopg2
running build_ext
building ‘psycopg2._psycopg’ extension
creating build/temp.linux-x86_64-cpython-39
creating build/temp.linux-x86_64-cpython-39/psycopg
gcc -Wno-unused-result -Wsign-compare -DNDEBUG -D_GNU_SOURCE -fPIC -fwrapv -O2 -pthread -Wno-unused-result -Wsign-compare -g -std=c99 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Werror=implicit-function-declaration -D_GNU_SOURCE -fPIC -fwrapv -D_GNU_SOURCE -fPIC -fwrapv -O2 -pthread -Wno-unused-result -Wsign-compare -g -std=c99 -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Werror=implicit-function-declaration -fPIC “-DPSYCOPG_VERSION=2.9.5 (dt dec pq3 ext)” -DPSYCOPG_DEBUG=1 -DPG_VERSION_NUM=80420 -DPSYCOPG_DEBUG=1 -I/home/josbmusc/virtualenv/josbreed_shop/3.9/include -I/opt/alt/python39/include/python3.9 -I. -I/usr/include -I/usr/include/pgsql/server -I/usr/include/libxml2 -c psycopg/adapter_asis.c -o build/temp.linux-x86_64-cpython-39/psycopg/adapter_asis.o -Wdeclaration-after-statement
In file included from psycopg/adapter_asis.c:28:
./psycopg/psycopg.h:31:2: error: #error “Psycopg requires PostgreSQL client library (libpq) >= 9.1”
cc1: warning: unrecognized command line option “-Wno-unused-result”
cc1: warning: unrecognized command line option “-Wno-unused-result”
cc1: warning: unrecognized command line option “-Wno-unused-result”

It appears you are missing some prerequisite to build the package from source.

You may install a binary package by installing ‘psycopg2-binary’ from PyPI.
If you want to install psycopg2 from source, please install the packages
required for the build and try again.

For further information please check the ‘doc/src/install.rst’ file (also at
).

error: command ‘/usr/bin/gcc’ failed with exit code 1
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
error: legacy-install-failure

× Encountered error while trying to install package.
╰─> psycopg2-binary

note: This is an issue with the package mentioned above, not pip.
hint: See above for output from the failure.”

i am really stuck, i will appricate if you help me out.
Reply