I first put in echo to describe the command
echo 'Now we do blah blah' python do_this.py
But, I wanted to see the commands too. I discovered the set -x command, which starts the debug mode and prints out every command as it is executed.
set -x echo 'Now we do blah blah' python do_this.py
But, this now, effectively, printed out the description twice: once when printing the echo statement and then again when actually executing the echo statement. Then I discovered the No OPeration (NOP) character for bash ":".
set -x : Now we do blah blah python do_this.py
This prints the line but does not try to execute it.