Hola, esto fue lo primero que pude hacer en Python. This was thanks to a YouTube video, the link to which I'll leave below.
Step 1 https://www.youtube.com/watch?v=rNBrbt90bRk
Step 2 https://www.youtube.com/watch?v=H-R7a01AclI
Many thanks to Kindson The Tech Pro for showing me how to create a calculator.