I've followed the instructions presented on:
I've jazzed up my terminal, but am running into an issue where my terminal consistently shows (e) base
as part of the prompt.
Google and https://powerline.readthedocs.io/en/master/ have not led me to an answer as of yet.
Executing source deactivate
removed (e) base.
Answer via: How to leave/exit/deactivate a python virtualenv?
If you are trying to leave an Anaconda environment, the procedure is a bit different: run the two-word command source deactivate since they implement deactivation using a stand-alone script.