Lets say you have print_date.py file in DSS DATA_DIR folder. If you want to incorporate file output into your pipeline you can introduce shell recipe.
$ python print_date.py
now = 2021-02-09 08:44:41.548331
date and time = 09/02/2021 08:44:41
In the test below I'm using echo to rename the column and add a custom row of text to the output. By using environment variables I can print current project and cd to DSS DATA_DIR folder to then run my print_date.py file.