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Python Package

Installation

The Open Web Calendar is available as a Python package on PyPI. If you have Python 3 installed, run this to install the package:

pip install open-web-calendar

At this point you might get the error message

error: externally-managed-environment

On your productive system, it is strongly recommended to follow the instructions to create a virtual environment using

python3 -m .venv
source .venv/bin/activate

followed by

pip install open-web-calendar

This will install your open-web-calendar app in the project folder /home/username/venv/lib/python3.12/site-packages/open_web_calendar

Execution

After installation, run the Open Web Calendar using Gunicorn:

gunicorn open_web_calendar:app

You should now see the server running at http://127.0.0.1:8000.

However, in case you have installed the WebPage you are going to use for the integration of your individual calendar on the same local machine, it must be accessible to other machines as well. In this case you might want to start the open_web_calendar with the dedicated IP-address of the hosting machine.

gunicorn -b 0.0.0.0 open_web_calendar:app

You should now see the server running at http://192.168.178.7:8000 not only from your local machine.

Automatic Startup

In order to start this service automatically at startup, you are required to create a systemd service script.

sudo nano /etc/systemd/system/open_web_calendar.service

Copy the following text into that file and do not forget to change username and usergroup accordingly!

[Unit]
Description=Gunicorn instance for the open_web_calendar
After=network.target

[Service]
User=username
Group=usergroup
# This is where you created the virtual environment before
WorkingDirectory=/home/username/.venv
Environment="PATH=/home/username/venv/bin"
ExecStart=/home/username/.venv/bin/gunicorn -b 0.0.0.0 open_web_calendar:app
ExecReload=/bin/kill -s HUP $MAINPID
KillMode=mixed
TimeoutStopSec=5
PrivateTmp=true

[Install]
WantedBy=multi-user.target

Finish the installation by a) Reload and enable the systemd manager

sudo systemctl daemon-reload

b) Enable the service to start on boot

sudo systemctl enable open_web_calendar

c) Start the service:

sudo systemctl start open_web_calendar

d) Verify that the service is running without errors

sudo systemctl status open_web_calendar

For more configuration options, see here: