BACK STORY:

I have a script build.py . (It's for creating the ISO file for a special edition of Swift Linux.) This build.py script executes the mintConstructor.py script that I use to modify the Regular Swift Linux ISO to get the special edition Swift Linux ISO. The lines of the script that do this are:

command_remaster = 'python /usr/lib/linuxmint/mintConstructor/mintConstructor.py '
os.system (command_remaster)

To create Taylor Swift Linux, I enter in a Bash shell the following command:
sudo python /home/username/develop/special/build.py 'ts' 'Taylor Swift Linux'

This allows me to see the full screen output of the mintConstructor.py script that is called by the build.py script. Unfortunately, this command doesn't log the output.

THE CONUNDRUM:

Seeing the mintConstructor.py output on the screen AND logging this output seems to be mutually exclusive. To add insult to injury, the log file is empty UNTIL the entire process is finished.

The command I'm using to try to do both is:
sudo python /home/username/develop/special/build.py 'ts' 'Taylor Swift Linux' | tee /home/username/develop/test-output/test1.txt

THE QUESTION:
How can I get the full mintConstructor.py output on the screen AND log
this output to a file?

You could try the 'script' utility, which captures all terminal output even while it's being displayed to the screen.

Is there a way to get the script command (and the exit at the end) to run AUTOMATICALLY?