Why does "alias python=/usr/local/bin/python3.7" keep getting appended to my .zshrc every time I open up a homebrew managed version of Anaconda?

I run a fairly stock .zshrc configuration. Stock meaning only a couple of aliases and a theme. But every time I open my .zshrc, I see several appended lines that all say this:

`
"alias python=/usr/local/bin/python3.7"

` Here is the teminal output from during the launch:

To access the notebook, open this file in a browser:
        file:///Users/alexrook/Library/Jupyter/runtime/nbserver-22716-open.html
    Or copy and paste one of these URLs:
        http://localhost:8890/?token=d9124fbeae0ec69f3bad4e31cfd0b22d568a08c4ef053227
     or http://127.0.0.1:8890/?token=d9124fbeae0ec69f3bad4e31cfd0b22d568a08c4ef053227 
[E 20:14:12.598 NotebookApp] Could not open static file ''
[W 20:14:12.726 NotebookApp] 404 GET /static/components/react/react-dom.production.min.js (::1) 13.87ms referer=http://localhost:8890/tree?token=d9124fbeae0ec69f3bad4e31cfd0b22d568a08c4ef053227
[W 20:14:12.861 NotebookApp] 404 GET /static/components/react/react-dom.production.min.js (::1) 1.45ms referer=http://localhost:8890/tree?token=d9124fbeae0ec69f3bad4e31cfd0b22d568a08c4ef053227