Install mezzanine into a virtualenv
The default version of mezzanine available on PythonAnywhere is a little old. To get the latest version, you need to use a virtualenv. Also, take a look at this PythonAnywhere forum thread if you are using Mezzanine 4 or higher and running into problems.
Creating a virtualenv
Start by creating a virtualenv -- a "virtual environment" which has only the python packages you want, rather than the system default ones. This allows you to use the latest version of mezzanine.
source virtualenvwrapper.sh mkvirtualenv mezzanine # or optionally, mkvirtualenv mezzanine --python=python3 to use Python 3 # you can also use --system-site-packages, see below
- ASIDE: If you use --system-site-packages, you'll get all of the pythonanywhere batteries included system pacakges like numpy, scipy etc, available in your virtualenv. the difference will be that you will then be able to install your own, upgraded version over the top, which is what we're doing with the mezzanine package.
You will now be "in" the virtualenv. You can tell whenever your virtualenv is active, because its name appears in the bash prompt:
(mezzanine)15:18 ~ $
From this point on, you can use
deactivate # to switch off the virtualenv workon mezzanine # to go back into the virtualenv pip install mezzanine # will show "downloading mezzanine... downloading django.. downloading requests etc # it may take several minutes for the install to complete. # check mezzanine has installed correctly pip freeze | grep -i mezzanine # this should show a recent version.
If anything goes wrong, make sure you were "in" the virtualenv when you started. Did the prompt have the little
(mezzanine)? If not, use
Starting a mezzanine project
Next is building your actual mezzanine site.
Creating the project
I'm using project_name as the project name, but you can substitute in whatever you want - as long as you do it everywhere!
workon mezzanine mezzanine-project project_name cd project_name
Setting a timezone
Next you'll need to edit the settings.py for your project. Use the Files menu to navigate to project_name/settings.py, and then find the line that defines
TIME_ZONE, and set it to something appropriate, eg:
TIME_ZONE = 'Europe/London'
Creating the database
python manage.py createdb --noinput
Creating a web app
Go to the Web tab on PythonAnywhere, and click Start a new Web App. Choose Manual Configuration.
In the virtualenv section of the web tab, enter the path to your virtualenv: /home/yourusername/.virtualenvs/mezzanine in our example.
WSGI configuration: sys.path + django settings module
Once it's loaded, click on the link to your WSGI file, and edit it so that it looks a little like this:
import os import sys # add project folder to path path = '/home/yourusername/project_name' if path not in sys.path: sys.path.insert(0, path) # Remove any references to your home folder (this can break Mezzanine) while "." in sys.path: sys.path.remove(".") while "" in sys.path: sys.path.remove("") # specify django settings os.environ['DJANGO_SETTINGS_MODULE'] = 'project_name.settings' # load default django wsgi app for Django < 1.4 import django.core.handlers.wsgi application = django.core.handlers.wsgi.WSGIHandler() # load default django wsgi app for Django >= 1.4 from django.core.wsgi import get_wsgi_application application = get_wsgi_application()
Reload Web App
Hit the big Reload Web App button, and click on the link to your site. You should now see a live site saying things like "Home" and "Congratulations", but the layout will look all broken, because the CSS isn't loading yet.
Configuring static files
Add a Static files entry on the Web tab
Back on the Web tab, go to the Static Files section, and enter a static file with
Run manage.py collectstatic
Open, or re-open your Bash console, and run
workon mezzanine python manage.py collectstatic
Reload web app
Back on the Web tab, hit the big Reload button,
Now your site should be live, and looking good!
Things to think about next
- The default database for Mezzanine is SQLite. It's fine for testing, but you probably want to switch to MySQL for production use. Check out the UsingMySQL page.
- You'll want to switch
DEBUGto False, and that will need you need to fill in
There's a few notes in this forum thread: https://www.pythonanywhere.com/forums/topic/1195/