Issues with V S Code

Hi Code with Mosh
Yesterday, I have enrolled to the python mastery program. I am really glad that I found you on Youtube. The way you teach is as simple as anyone could understand it. That;s because I enrolled for this course. But on Youtube you focused in Pycharm and in this course you introduced VSCode. When I download it, I am getting lot of other messages like 'python3 command requires the command line developer tools. Would you like to install the tools now? like that
And when i tried to run my first program i get another error message like this

“The default interactive shell is now zsh.
To update your account to use zsh, please run chsh -s /bin/zsh.
For more details, please visit Use zsh as the default shell on your Mac - Apple Support.
aneeshs-MacBook-Air:MyFuture aneeshmacbook$”

What should I do? Please help me