pgadmin4 - New install not working

Question

I downloaded the postgresql-9.6.0-1-linux-x64.run package and ran through the installer on ubuntu 16.04. Postgres is working fine. I am trying to use the pgadmin4 package that was included with this installer. I created a site in Apache per the instructions.

This is the error I am getting in the server.log file in Apache. Not sure how to fix this.

   Traceback (most recent call last):

File "/opt/PostgreSQL/9.6/pgAdmin4/web/pgAdmin4.wsgi", line 8, in <module>
     from pgAdmin4 import app as application

File "/opt/PostgreSQL/9.6/pgAdmin4/web/pgAdmin4.py", line 24, in <module>
     from pgadmin import create_app

File "/opt/PostgreSQL/9.6/pgAdmin4/web/pgadmin/__init__.py", line 18, in <module>

  from flask_babel import Babel, gettext

ImportError: No module named flask_babel

Solution 1

This error message shows that your environment is missing a package called flask_babel. To install it, switch to the virtualenv your webserver uses and install it with this command:

pip install flask_babel

If you are not using any virtual environment for your python scripts, you have to prepend sudo to the command. But you should really consider using a virtualenv for your projects.

Solution 2

If you are using virtualenv to run pgAdmin4 then you need to activate it first, Refer Apache mine wsgi file.

Solution 3

Flask_babel is one of the dependencies of pgAdmin4, and there will be others.

You may find it easier to use a Python Wheel installer, which you can find here: https://www.pgadmin.org/download/pgadmin-4-python-wheel/

With this distribution, simply execute:

pip install ./pgadmin4-2.1-py2.py3-none-any.whl

And then configure the application as indicated on the website.

If you run this command in a virtual environment, the dependencies will be installed in this environment.

If you want to run on an Apache server, this installation will produce a .wsgi file in the site-packages folder of your python installation.