Set up the CET in oTree

This is how you import the Carbon Emission Task into your oTree framework.

Step 1: Download the CET

Download the CET folder from Github/NoelGit95/CET_doc.

Step 2: Add the CET to your oTree Project

Copy the CET folder into your oTree project directory like this:

— Your_oTree_Project: - otree_app1

- otree_app2

..

- cet_light

- manage.py

- requirements.txt

- settings.py

Step 3: Change session configurations in settings.py

Include the CET app in your settings.py file. To do this append the following code in the SESSION_CONFIGS list.

3.1: Dictionary

dict(
    name='cet_light',
    display_name="CET Light Version",
    num_demo_participants=40,
    app_sequence=['cet_light'],
)

Note

Name Matching: Like with any oTree app the specified name in the dict() must match the name of the project’s folder. So make sure to change both the folder name as well as the name='' in the dict() in case you want to name the project any other way than cet_light.

3.2: Currency

The CET Data (csv file) provides the values for a player’s bonus. The currency used is the Great British Pound. If you want to use a different currency, the data in the cet_data file has to be adjusted accordingly. If no changes are made to the cet_data file the currency parameters have to be specified as such:

# e.g. EUR, GBP, CNY, JPY
REAL_WORLD_CURRENCY_CODE = 'GBP'
USE_POINTS = False

Step 4: Install required packages

4.1: Download packages

The following packages that are not in the Python Standard Library are required: requests

4.2: Add packages to requirements.txt

Add the following line to the requirements.txt file:

requests~=2.25.0 #Or higher version if this one is outdated.

Step 5: Start the CET

All Done. You can start the cet app like any other otree app by going to your oTree project directory and starting the oTree devserver.

otree devserer

Click Next for further explanations of the cet_light folder’s contents.