This is just to highlight that the Anaconda Python Distribution does not work with the latest MacOS Catalina. I only realized upon trying to open Anaconda Navigator, after installing Catalina.
The only (good) solution seems to be reinstalling Anaconda.
MacOS Catalina was released on October 7, 2019, and has been causing quite a stir for Anaconda users. Apple has decided that Anaconda’s default install location in the root folder is not allowed. It moves that folder into a folder on your desktop called “Relocated Items,” in the Security folder. If you’ve used the .pkg installer for Anaconda, this probably broke your Anaconda installation. Many users discuss the breakage at https://github.com/ContinuumIO/anaconda-issues/issues/10998.