Need assistance - zsh on Mac to run pyILPer

[smp]

I recently set up Anaconda and pyILPer on my MacBook Pro, for use with my PILBox and my new-to-me HP-71B.

All was working fine. In my terminal window on my Mac, where I issued the command 'pyilper' to start pyILPer, I kept getting a message from the system that zsh is now the proper shell to be using. I ignored this for a while, but finally broke down and issued the change shell command the system was requesting.

Now, of course, the new zsh does not know anything about pyILPer at all, and I can no longer get it to run.

I am on a MacBook Pro, with the latest Mac OS 10.15.1 Catalina.

Are there any other Mac users who can tell me what in the world I must do to set up a correct path to Anaconda and pyILPer on my Mac?

Thanks very much, in advance, for any thoughts, hints, examples, or whatever might help.

smp